Bird Electronics AT800 Product Catalog

A Member of Bird Technologies Group

GENERAL CATALOG

AND

APPLICATIONS GUIDE

QUALITY INSTRUMENTS FOR RF POWER MEASUREMENTS

OUR MISSION...

Bird Technologies Group is committed to meeting its customers’ needs for innovative RF and
communication products around the globe. With representation in over 45 countries, you can
count on us for quality solutions, excellent service, and long-term reliability.

BIRD TECHNOLOGIES GROUP

Bird Technologies Group (BTG) is the parent of Bird Electronic
Corporation, Bird Component Products, and TX RX Systems Inc.
BTG brings the synergy of several companies with proven
leadership and expertise in the fields of RF measurement,
manufacturing, and communication technology.

■

RF Power Meters

■

High-Power Line Sections and Components

■

Antenna Testers

■

High-Power Loads and Attenuators

■

VSWR Alarms and Power Monitors

For use in:

■

PCS, Cellular and other Wireless Services

■

Conventional and Digital Broadcast

■

Semiconductor Fabrication

■

Traditional and Two-way Paging

■

Mobile and Two-way Radio

■

T-Pass®Transmit-Receive Multicouplers

■

Signal Booster Systems

■

Tower Mount Preamps

■

Broadband Base Station Antennas

■

Resonant Cavity Filters

■

RF System Components

For use in:

■

Wireless Infrastructure OEM

■

System Integrators

■

Wireless Carriers

■

PCS

■

Specialized Mobile Radio

■

Two-way Radio

■

Paging

■

Coaxial RF Terminations

■

Coaxial RF Attenuators

■

Hybrid Coaxial Dividers/Combiners

For use in:

■

Wireless Infrastructure OEM

■

Wireless System Design

■

General Purpose RF Test and Measurement

30303 Aurora Road
Cleveland, Ohio 44139
Phone: [phone]
Fax: [phone]

30303 Aurora Road
Cleveland, Ohio 44139
Phone: [phone]
Fax: [phone]

8625 Industrial Parkway
Angola, New York 14006
Phone: [phone]
Fax: [phone]

E-mail: [email protected] • Internet: www.bird-electronic.com

3

PRODUCT PAGE

ANTENNA TESTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5

LABORATORY GRADE INSTRUMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–8

WATTMETERS, AND PRODUCTS FOR 50-OHM CABLE SYSTEMS AND 7⁄8" LINE . 9–28

PRODUCT SELECTION GUIDE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

PORTABLE WATTMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–16, 21

DIGITAL RF SIGNAL WATTMETER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

TEST SETS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

PANEL-MOUNT WATTMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17–18

WATTCHER

®

RF MONITORING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19–20

SIGNAL SAMPLERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

FIELD-STRENGTH METER AND ELEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

METER MOVEMENTS AND

7

⁄8" LINE SECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 23

CASES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

PLUG-IN ELEMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25–28

WATTMETERS AND PRODUCTS FOR 15⁄8" – 61⁄8" RIGID LINE SYSTEMS . . . . . . 29–38

PRODUCT SELECTION GUIDE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

WATTMETER PACKAGES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30–31

WATTCHER

®

RF MONITORING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32–33

RIGID LINE SECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

METERS FOR RIGID LINE USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

PLUG-IN ELEMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36–38

ABSORPTION WATTMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39–41

RF COAXIAL TERMINATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42–53

RF COAXIAL ATTENUATORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54–58

ACCESSORIES AND CONNECTORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59–61

TECHNICAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62–64

INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65–66

TABLE OF CONTENTS

Look for these symbols which identify whether
an instrument is used with 50-ohm Cable and

7

⁄8"Rigid Line, or High-Power Rigid Line

RF Systems.

FOR YOUR CONVENIENCE

Bird Electronic Corporation maintains an aggressive program of testing products for conformity to applicable
electromagnetic and safety standards, including European EEC directives. We are proud to announce that,
where applicable, Bird products carry the “CE” mark. A CE-marked product complies with relevant EEC directives
and is approved for sale to the European Union.

The continuing phase-in of new EEC directives may periodically affect the status of some products. However, any Bird prod­uct offered for sale to the European Union will conform to all EEC directives in effect at the time of shipment. Please consult
your local Bird sales office or Bird Electronic Corporation regarding questions about CE compliance of any Bird product.

Rigid LineRigid Line

PrProductsoducts

Phone: [phone] • Fax: [phone]

4

ANTENNA TESTERS

HF, VHF, and UHF

Bird’s AT-Series Antenna Testers bring a new dimension to the testing of HF, VHF,
and UHF antenna systems. Powerful, yet remarkably easy to use, these instruments
can test an entire band in a matter of seconds. And unlike conventional antenna
testers, Bird’s advanced design provides accurate results regardless of antenna
cable length. Menu driven, software-defined keys and digital keypad permit quick
selection of operating mode and direct entry of test parameters. A self-contained
RF source lets you precisely set the test frequency – no external transmitter is
needed. A built-in adaptable antenna jack mates a wide range of standard
RF connectors. Plus, compact size and rechargeable batteries provide for truly
portable operation.

■

Swept Frequency Measurements – Fast scans show VSWR, Match Efficiency
or Return Loss across the entire band. A moveable cursor can be used
to pinpoint scan frequency and digitally display the corresponding
measurement value.

■

Single-Frequency Mode – Can be used to optimize antenna performance
and troubleshoot intermittent problems.

■

Limit Testing – Quick Pass-Fail indicator compares measurements to user
selected limits.

■

Audible Indicator – Pitch varies with match condition. You can keep your
eyes and hands on adjustments and simply listen for the best match.

■

Field-Strength Measurements – Verifies the output of devices such as portable
radios and cellular phones.

■

Data Storage – Saves and recalls up to 12 scans in nonvolatile memory
for long-term monitoring of antenna performance or degradation.

■

Serial Communication Link – Optional software uploads data to a
personal computer for analysis or storage.

■

Back-lit Liquid Crystal Display – More rugged than mechanical movements,
more versatile than digital displays, and visible in any light. The LCD also
produces high-resolution graphics.

■

Portable – Lightweight, easy-to-carry, with rechargeable batteries.

■

Rugged – Designed to meet the harsh environment requirements
of MIL-T-28800.

MEASURE VSWR, MATCH EFFICIENCY, RETURN LOSS, FIELD STRENGTH

MODEL AT-800

Single frequency mode
for antenna tuning.

Swept frequency mode reveals
a comprehensive picture of
antenna matching.

E-mail: [email protected] • Internet: www.bird-electronic.com

5

MODELS AT-100, AT-400, AT-800

ANTENNA TESTERS

HF, VHF, and UHF

MODEL: AT-100 AT-400 AT-800

Frequency Range: 2 –136 MHz 80 –520 MHz 806 –960 MHz
Frequency Resolution: 20 kHz 30 kHz 30 kHz
Frequency Accuracy:

±

50 kHz

±

100 kHz

±

100 kHz

Measurement Range:

VSWR: 1.00 – 99.99 1.00 – 99.99 1.00 – 99.99
Match Efficiency: 0.0 to 100.0% 0.0 to 100.0% 0.0 to 100.0%
Return Loss: 0.0 to –32.0 dB 0.0 to –32.0 dB 0.0 to –32.0 dB

Measurement Speed (Typical):

Single Frequency: 5 readings/second 5 readings/second 5 readings/second
Swept Frequency: 1 sweep/second 1 sweep/second 1 sweep/second

Preprogrammed Bands: None None AMPS, NADC, GSM, PDC, CT2
Field Strength:

Range: 0 to 100% (relative) 0 to 100% (relative) 0 to 100% (relative)
Sensitivity: Full-scale deflection Full-scale deflection Full-scale deflection

at 8 v/m @ 100 MHz at 0.22 v/m @ 400 MHz at 3m @ 12.6 W ERP

Test Port:

Impedance: 50-ohm nominal 50-ohm nominal 50-ohm nominal
Connector N (F) included N (F) included TNC (F) included
(Field-changeable): Others available Others available Others available

Interface: Serial Serial Serial

(female DB-9 connector) (female DB-9 connector) (female DB-9 connector)

Power Requirements:

Batteries: Six rechargeable AA Six rechargeable AA Six rechargeable AA

(KR-15/51) (KR-15/51) (KR-15/51)
External DC: 11 to 16 Vdc 11 to 16 Vdc 11 to 16 Vdc
External AC Adapter: 108 to 132 Vac 108 to 132 Vac 108 to 132 Vac

@ 57 to 63 Hz @ 57 to 63 Hz @ 57 to 63 Hz

or 207 to 253 Vac or 207 to 253 Vac or 207 to 253 Vac

@ 48 to 52 Hz @ 48 to 52 Hz @ 48 to 52 Hz

Operating Temperature: 0° to 50°C 0° to 50°C 0° to 50°C

(32° to 122°F) (32° to 122°F) (32° to 122°F)

Storage Temperature: –41° to 71°C –41° to 71°C –41° to 71°C

(–40° to 160°F) (–40° to 160°F) (–40° to 160°F)

Size (including connector): 8" H x 45⁄8" W 8" H x 45⁄8" W 8" H x 45⁄8" W

× 13⁄4" D × 13⁄4" D × 13⁄4" D

(204 mm

× 118 mm (204 mm ×118 mm (204 mm × 118 mm

× 42 mm) × 42 mm) × 42 mm)

Weight: 13⁄4 lbs. (0.8 kg) 13⁄4 lbs. (0.8 kg) 13⁄4 lbs. (0.8 kg)
Supplied Accessory: Field-strength antenna Field-strength antenna Field-strength antenna

Recommended Accessories:Carry case Carry case Carry case

(Model 7000A850), (7000A850), (7000A850),

Windows

®

Interface Windows®Interface Windows®Interface
Software (Model 7000A840), Software (7000A840), Software (7000A840),
Cigarette Lighter Adapter Cigarette Lighter Adapter Cigarette Lighter Adapter
(Model 5A2238-1) (Model 5A2238-1) (Model 5A2238-1)
Verfication Kit 7000A145 Verification Kit 7000A145 Verification Kit 7000A845

AT series antenna testers
are compact, truly portable
and solidly built for go­anywhere service.

Windows®is a registered trademark of Microsoft Corporation.

Phone: [phone] • Fax: [phone]

6

LABORATORY
GRADE INSTRUMENTS

THRULINE®High-Accuracy RF Power Meter

Our Model 4421 power meter is an excellent choice for demanding calibration,
process control and scientific applications. It directly measures power with an
accuracy of ±3% of reading without calibration charts, couplers, attenuators, or
other external equipment which can degrade accuracy.

The backlit 3

1

⁄2-digit LCD displays forward and reflected power in either watts
or dBm, VSWR, return loss in dBm and Minimum or Maximum values. Ranging is
selectable manual or autoranging. An optional GPIB or RS-232 computer interface
can be used with the Model 4421 during AC operation.

Smart Power Sensors (see below) are required for operation. Each covers an extended
frequency and power range. The microprocessor based sensors contain nonvolatile
memory to store calibration data, and can easily be recalibrated in the field.

Power Range: 100 mW to 10 kW FS
Frequency Range: 100 kHz to 2.5 GHz
VSWR Range: 1.0 – 199.9
Functions: Forward and reflected power in

W or dBm, VSWR, return loss in dB and
min/max values

Ranging: Selectable manual or autoranging.

Power sensor dependent.

Overrange Indication: Audible warning when

RF power input exceeds 120% of
sensor’s maximum power range.

Display: 31⁄2digit-liquid crystal display with

annunciator for mode, measurement units,
battery condition, programming status,
and trend arrows. Switchable backlight.

MULTIFUNCTION POWER METER MODEL 4421

Operating Power: AC mains or batteries.

115/230 Vac, 50/60 Hz or 8 nickel cadmium

1.2 V C cells (NEDA type 10014).

Nominal Size: 129⁄32" L ×125⁄32" W ×41⁄4" H

(312 mm x 309 mm

×

108 mm) with handle

extended 15

7

⁄16"L (392 mm)

Weight: 11 lbs. (5 kg.)
Interconnects: 1 meter latch-n-lok coiled cable.
Interfaces: Optional field-installable

IEEE-488 (PN: 4421-488) or RS-232 serial
interface (PN: 4421-232).
Dimensions: 4

1

⁄2" ×61⁄2" (114 ×165 mm)

Required Product: Order a Smart RF Power

Sensor below

Recommended Accessories: Case (page 7)

Circuitry: Microprocessor-based measurement

and conversion.

Frequency/Power Coverage: Single power

sensor covers specified power and
frequency range.

Bi-directional Operation: Pick up of RF power

in precision 50-ohm line.

Accuracy:

±

3% of reading from rated
maximum range down to 30% of
full scale on the most sensitive range.

Signal Purity: For rated accuracy, no more than

1% AM; harmonics –50 dB or less.

Calibration Technique: Calibration vs frequency

curve stored in nonvolatile memory within
each sensor. Sensor output corrected at fre­quency of measurement within rated stage.

SMART POWER SENSORS 4020 SERIES

Sampling Rate: Approximately 2 readings/second.
Ambient Temperature Range: Temperature

compensated for rated accuracy from
0˚C to 50˚C (32˚F to 122˚F).

Connectors: QC-type. Female N normally

supplied; Other coaxial-type connectors
available on page 60.

Nominal Size: (includes connectors)

5

7

⁄32" L ×21⁄2" W ×31⁄4" H

(132.5 mm

×

64 mm ×83 mm).

Weight: 1 lb. 11 oz. (0.76 kg).

MODEL

POWER FREQUENCY VSWR MINIMUM INSERTION

INPUT RANGE RANGE DIRECTIVITY LOSS (DB)

4021 300 mW – 1000 W 1.8 MHz – 32 MHz 1.0 – 2.0 28 <0.05

(1200 W max.)

4022 300 mW – 1000 W 25 MHz – 1000 MHz 1.0 – 2.0 28 25 – 512 MHz: <0.05

(1200 W max.) 512 – 1000 MHz: <0.13

4023 100mW – 200W 900 MHz – 2500 MHz 1.0 – 3.0 20 <0.2

(240 W max.)

4024 3 W – 10 kW 1.5 MHz – 32 MHz 1.0 – 2.0 28 <0.05

(12 kW max.)

4025 3 W – 10 kW 100 kHz – 2500 kHz 1.0 – 2.0 28 <0.05

(12 kW max.)

E-mail: [email protected] • Internet: www.bird-electronic.com

7

LABORATORY

GRADE INSTRUMENTS

THRULINE®High-Accuracy Power Meter, Model 4421 Accessories

The 4421A500 calibration kit lets you calibrate and maintain calibration histories
of 4020 Series power sensors used with your 4421 power meter. The kit consists of a
calibration card (must be installed in your 4421 power meter), calibration key, sensor
cable, software for your PC and instruction book. Use the kit with an RF power
source, RF low-pass filter, RF terminating power standard like the Bird Model 6091
calorimeter and IBM compatible computer fitted with a GPIB card.

Calibration Software: 31⁄2" and 51⁄4"

diskettes supplied

Plug-in Card Module:

Logic Level:

Meets all IEEE standard
488-1978 specs
Operating Modes: (Switch & Bus Selectable)
Talk Only: Keyboard can command meter
to output a measurement to the bus
Addressable: IEEE-488 bus controller
command can give power meter a talker
of listener address

Connector: Standard IEEE-488 bus type
Temperature Range:

Operational: 0° to 50° C (32° to 122° F)
Storage: –20° to +70° C (–4° to 158° F)
Dimensions: 61⁄2"L ×41⁄2"W ×1"H
(165 mm

×

114 mm ×25 mm)

Weight: 1⁄2lb. (227 g.)

CALIBRATION KIT MODEL 4421A500

Power Requirements: AC operation

of 4421 meter

Calibration Key:

Dimensions: 3"L ×2"W ×15⁄8"H
(76 mm

×

51 mm ×41 mm)

Weight: 3 oz. (85 g.)

Cable Length: Approx. 3 ft. (1 m)
Required Products: 4421 power meter, 4020

Series power sensor, RF power source,
RF low-pass filter, RF terminating power
standard (Bird Model 6091 calorimeter
recommended) and IBM compatible
computer fitted with a GPIB card.

Protect and easily transport your 4421 power meter and power sensors with
this sturdy carrying case. The Model 4300A215 case cradles your wattmeter and
up to 4 power sensors in shock-absorbing laminated die-cut foam inserts. Another
insert holds power cables and miscellaneous accessories. The case features an
internal divider panel, strong rigid aluminum frame and durable charcoal color
polyurethane shell. A comfortable fold down handle makes it easy to tote your
equipment and quick-release latches keep everything secure.

CARRY CASE FOR 4421 MODEL 4300A215

Page 24 contains instrument cases for other Bird wattmeters.

The Model 4420 analog display power meter offers most of the capabilities of
the Model 4421 on the facing page and uses the same power sensors. The major
differences are the Model 4420 has only manual ranging, operates only with
AC power and cannot be used with the Model 4421A500 calibration kit.

MULTIFUNCTION POWER METER MODEL 4420

Phone: [phone] • Fax: [phone]

8

LABORATORY
GRADE INSTRUMENTS

High-Accuracy Broadband RF Power Calorimeters

Our microprocessor controlled 6091 and 6085 Absolute Flow RF Calorimeters are
calibrated to a precision standard with the calibration profile in nonvolatile memory.
Measurements are automatically corrected prior to display and there’s no need for
calibration curves. A built-in interface lets you connect either calorimeter to any sup­ported GPIB controller for remote or automated testing. Both units support IEEE-488.

The self-contained Model 6091 measures 10 to 200 watts at DC to 2.5 GHz with
±

1.25% of reading accuracy, and reaches 97% of the final reading in under
1 minute. Measurements are made by connecting the power source to the
Model 6091. Sensor circuitry and load are inside the calorimeter for convenient,
self-contained operation. The power reading is presented on a 4-digit LED display.
The Model 6091P is a panel-mount version.

SELF-CONTAINED CALORIMETER MODELS 6091, 6091P

HIGH-POWER CALORIMETER MODEL 6085

Models: 6091 and 6091P (panel mount)
Power Range: 10 W – 200 W (average power

independent of wave shape).

Frequency Range: Broadband; low-reflection

load remains precisely matched from
DC to 2.5 GHz.

Input VSWR: DC to 1 GHz: 1.10 max. (26.4 dB

min. return loss). 1 to 2.5 GHz: 1.25 max.
(19.18 dB min. return loss).

Accuracy: 10 W – 25 W: ±3% of reading.

25 W to 200 W: ±1.25% of reading.

Display/Functions: Large 4 digit, 7-segment

LED displays RF power directly in W.
The rise in coolant temperature (∆T) is
displayed in ˚C. Coolant flow rate is
displayed in liters/minute.

Calibration: Precalibrated to precision

power standard at factory, with data
stored in nonvolatile memory.

Response Time: 1 minute max. to reach

97% of final reading.

Sampling Rate: 1 reading/second.
Remote Operation: General Purpose Interface

Bus cable supplied, for connecting the
6091 to a GPIB controller. All front panel
features are available through the bus.

GPIB Functions Supported: SH1, AH1, T6, L4,

SR1, RL1, PP0, DC1, DT1, C0, E1, TE0, and
LE0. (IEEE 488 1978)

EMI: EMI compliance per FCC part 15J, Class A.
Coolant: 10 oz. (525 ml.) water-based coolant

(65% H

2

0 + 35% ethylene glycol).

Load: Specially designed 50-ohm precision

load resistor assembly.

Input Connector: Female Type N.
Nominal Input Impedance: 50 ohms.
Power: 104 to 132 Vac / 195 to 264 Vac,

47–63 Hz (single phase).

Power Consumption: 45–70 W
Temperature Range: Storage: 50˚ to 122˚F

(10˚ to 50˚C)

Operating: 59˚ to 95˚F (15˚ to 35˚C).
Nominal Size: (includes connector end drain)

Model 6091: 16

1

⁄2" L ×2015⁄32" W

×

817⁄16" H (419 mm ×520 mm ×210 mm)
Model 6091P: 16

1

⁄2" L ×2015⁄32" W

×

817⁄16" H (419 mm ×483 mm × 177 mm)

Weight: Model 6091: 40 lbs. (18.1 kg.)

Model 6091P: 25 lbs. (11.3 kg.)

Accessories: 61⁄2ft. (2 meter) GPIB cable,

AC power cord.

Power/Frequency Range: Function of RF

load, flow rate, temperature and coolant

Accuracy:

±

3% of reading

Circuitry: Microprocessor based operation

with digital display

Display/Functions: 31⁄2-digit LCD displays

power in W or dBm, (∆T) in ˚C, flow in
liters/minute, min., max., back light

Over-Range Protection: N/O and N/C

interlock on sensor

Ambient Temperature Range: 5˚C to 35˚C
Cable Length: 5 m standard
Water Flow: 4 to 72 liters/min.

(actual range determined by RF load)

Stabilization Time: 5 minutes typical
Coolant: Water/glycol
AC Power: 115/230 Vac, 50/60 Hz
Nominal Size: Meter: 129⁄32" L ×125⁄32" W

×

41⁄4" H (312 mm ×309 mm ×108 mm);

Power Sensor: 9

27

⁄32" L ×103⁄32" W

×

53⁄64" H (250 mm ×256 mm ×128 mm)

Weight: RF Power Meter: 9 lbs. (4 kg);

RF Power Sensor: 7 lbs. (3.2 kg)

Required Product: ECONOLOAD®Load

Resistor on pages 50–51, or other water
cooled external load

The Model 6085 consists of a digital RF power meter and an RF power sensor that
must be used with an ECONOLOAD

®

or other external water-cooled load. The load
connects to a sensor box which is digitally linked to the meter. It provides ±3% of
reading accuracy and fast stabilization. RS-232 (Model 6085A232) and IEEE-488
(Model 6085A488) Interface Cards are available.

E-mail: [email protected] • Internet: www.bird-electronic.com

9

RF POWER METER

SELECTION GUIDE

Power Meters For Use With 50-Ohm Cable

We’ve organized the power meters in this catalog into three major groups: wattmeters for use with 50-ohm cable and

7

⁄8” line

(pages 6-21), wattmeters for 1

5

⁄8”– 61⁄8” rigid transmission lines (pages 29–33) and absorption wattmeters (pages 39–41).

The tables below should help you identify the Bird 50-ohm cable power meter that’s best for your application. Then turn to
the referenced page for full product descriptions and specifications. You can also contact Bird or any authorized distributor
for further assistance.

Broadcast professionals and those needing power meters for rigid transmission lines should see the selection guide on
page 29. The absorption wattmeter selection guide is located on page 39.

PRECISION
INSTRUMENTS

Pages 6–8

PORTABLE MODELS

Pages 11–16, 21

CASES Page 24
TEST SETS Page 14

PANEL-MOUNT
MODELS

Pages 17–20

ELEMENTS

Pages 25–28

ACCESSORIES, PARTS,
AND QC CONNECTORS

Pages 23, 59–61

MODEL POWER FREQ. DISPLAY SEE
(SEE NOTE 1)

SPECIAL FEATURES

(WATTS) (MHz)

ACCURACY

TYPE PAGE

43* General purpose portable for 50-ohm AM, FM, CW, SSB. 0.1–10,000 0.45–2700

±

5% FS Analog 12

4308* Model 43-style for analog cellular systems. 1.5–50 440–960

±

5% FS Analog 15

4304A* Broadband operation. 5 ranges with single element. 5–500 25–1000

±

7% FS Analog 15

4431* Similar to Model 43, but with adjustable output RF tap. 0.1–5000 2–1000

±

5% FS Analog 14

4314B* PEP & peak-reading for navcom, radar, TV, telemetry, pulsed RF. 0.1–10,000 0.45–2700

±

5% FS Analog 13

4410-Series* High sensitivity, dynamic range and accuracy. Multirange elements. 0.002–10,000 0.2–2300

±

5% of rdg Analog 16
APM-16* Average-reading meter for analog and digital services. 1–1000 2–2300 4% rdg + 1% FS Analog 11
4305A* High-power version of Model 43 . 50–25,000 0.45–2300

±

5% FS Analog 14
4391A** High-speed CW, PEP and Peak pulse for pulsed RF, radar, TV, telemetry. 0.1–10,000 0.45–2700

±

5% FS Digital 21

Note 1: * = Portable THRULINE®style instrument with internal line section and QC connectors.

** = POWER ANALYST

®

style instrument with digital display and pushbutton controls.

PANEL-MOUNT – For Control Racks and Permanent Installations

POWER FREQ. DISPLAY SEE

MODEL SPECIAL FEATURES

(WATTS) (MHz)

ACCURACY

TYPE PAGE

4527 Dual elements, dual meters and fixed RF tap. For 2-way mobile radio. 0.1–1,000 2–512

±

5% FS Analog 17

4521 Single meter with single rotatable element (rack-mount Model 43). 0.1–10,000 0.45–2700

±

5% FS Analog 17

4522 Dual elements with single, switchable meter. 0.1–10,000 0.45–2700

±

5% FS Analog 17

4526 Dual elements and dual meters for simultaneous fwd and refl readings. 0.1–10,000 0.45–2700

±

5% FS Analog 17

3128A Forward and reflected power monitor/alarm; 43-type elements. 0.1–10,000 0.45–2700

±

5% FS Analog 19

3170A High-speed, forward and reflected power monitor/alarm; 43-type elements. 0.1–10,000 0.45–2700

±

5% FS Analog 20

4201-Series 12 or 24 channel, dual meters 0.1–10,000 0.45–2700

±

5% FS Analog 18

PRECISION INSTRUMENTS – For Laboratories, Research, and Other High-Accuracy Applications

POWER FREQ. DISPLAY SEE

MODEL SPECIAL FEATURES

(WATTS) (MHz)

ACCURACY

TYPE PAGE

4420 Direct reading of power, VSWR, return loss. Uses external sensor. 0.1–10,000 0.1–2500

±

3% of rdg. Analog 7

4421 Direct reading of power, VSWR, return loss. Uses external sensor. 0.1–10,000 0.1–2500

±

3% of rdg. Digital 6

6085 Calorimeter with separate power sensor. Use with external load. See Note 2 See Note 2

±

3% of rdg. Digital 8

6091 Calorimeter. Broadband, high accuracy, self contained. 10–200 DC–2500

±

1.25% of rdg. Digital 8

50-OHM CABLE WATTMETERS –

Portable — For Service and Field Use

Note 2: Model 6085 is used with a separate ECONOLOAD®. Load determines power and frequency range. Typical capability > 10kW.

Phone: [phone] • Fax: [phone]

10

THRULINE®WATTMETERS DELIVER
RF POWER MEASUREMENTS YOU CAN TRUST

The development of the first Bird Model 43 THRULINE

®

Wattmeter in 1952 heralded a major breakthrough in
the search for a solution to quickly and easily measure

radio-frequency power. It is difficult

today to realize that for most

of the first half century of radio

communications, the most

basic parameters of broadcast­ing could be measured only
by tedious and painstaking
procedures. While transmit
power could be derived via
RF voltage measurements
or calorimetry, neither proce­dure could measure reflected
power in real-world antenna
systems. Slotted-line devices
could be used to derive
VSWR, but their operation
was exacting, time consuming,
and often imprecise.

The Model 43 revolutionized

power measurement by
providing a means to measure
FORWARD and REFLECTED
power flow in a coaxial trans­mission line that was both
elegant in concept and simple
in application.

■

Just connect the THRULINE®Wattmeter into the coaxial
line, using readily interchangeable RF connectors.

■

Insert a precalibrated element into the THRULINE

®

sample port to define the power and frequency range.

■

Rotate the element to the stop to select the direction
of power flow to be measured.

■

Energize the line and take a reading.

A difficult task became exceptionally simple.
Accurate, dependable and ruggedly built to last. The

Model 43 quickly became the preferred method for mea­suring RF power in coaxial transmission lines and made
±

5% of full scale the new standard of accuracy. And the
Model 43’s rugged construction spawned a legendary
reputation for performing under the toughest conditions.
While we strongly discourage abuse of this precision
instrument, stories abound of Model 43’s that survived drops
from towers, immersion in floods, falls from moving vehicles
and, in at least one instance, the weight of a bulldozer.
Our 1995-1996 search for vintage units yielded numerous
Model 43’s from Bird’s initial 1952 product run that were
still in regular use. Justin Dennis, the owner of the oldest
instrument we located, captured the essence of the Model
43 when he told us “If it says 80 watts, it’s 80 watts.”

Power meters for every application. Today, Bird offers a
wide selection of general and special purpose RF power

VINTAGE 43 WATTMETER

This well used Model 43
from Bird’s first production
run still delivers accurate
measurements today. It was
donated to Bird in 1996
by Justin Dennis.

We’ve included selection guides in this catalog to help
you quickly zero-in on the right wattmeter for your
application. Bird’s expert staff is ready to assist you.

FINDING THE RIGHT POWER METER

meters. The single element Model 4304A and Model 4308
offer a wide-frequency range, multiple power ranges and
±

6 to 7 percent of full- scale accuracy. The industry standard
Model 43, with its several variations, still provides the pace
setting ±5% of full-scale accuracy. For even more precision,
choose from the 4410 Series with their multirange elements
and ±5% of reading accuracy. The highest accuracy available
today in THRULINE

®

technology is the digital display 4421
Laboratory Grade Wattmeter, which offers ±3% of reading
accuracy, automatically computes VSWR, displays power in
either watts or dBm and retains minimum and maximum
readings in memory.

Other THRULINE

®

Power Meters and test sets are available
to measure peak envelope power, pulsed RF, avionic and
television power levels. Bird also offers a full range of
fixed communications site monitoring instruments, from
wattmeters for use with up to 6

1

⁄8" broadcast lines to our

multifunction WATTCHER

®

RF Monitors.

State-of-art power meters for PCS
and more.

Our newest wattmeter,
the Advanced Power Measurement
Model APM-16, is specially designed
for use on today’s digitally modu­lated RF communication systems.
The APM-16 combines proven
THRULINE

®

technology with state­of-art circuitry to take average
power readings of CDMA, FDMA,
GSM, TDMA, and other digital
technologies used in today’s
cellular, PCS, and similar systems.

Whether your next purchase
is the new Model APM-16, a
WATTCHER

®

RF Monitor or any
Bird product, you can be confident
it will perform exactly as you’d
expect. Every unit we build today
contains the same care and pride
that went into our 1952 vintage
Model 43s that still give their
owners dependable power
measurements over 40 years later.

Product Page

Meters for 50-ohm cable and 7⁄8” line. . . . . . . . . . . . . . . . . . . . . 9

Meters for 1

5

⁄8”– 61⁄8” line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Absorption wattmeters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

APM-16

The new Model APM-16
accurately measures
complex digital as well
as analog signals.

E-mail: [email protected] • Internet: www.bird-electronic.com

THRULINE

®

RF DIRECTIONAL WATTMETERS

Advanced Power Measurement For Digital RF Signals

11

Bird developed the APM-16 for engineers and technicians who work with today’s
increasingly common digital RF technology systems. The complex waveforms of
many PCS, cellular, and other digitally-encoded services can depart significantly
from AM, FM, and CW, making power measurement difficult and uncertain. The
APM-16 meets the challenge by delivering precise average power readings for
virtually any digital or analog system.

New APM series plug-in elements cover 2 through 2300 MHz and 1 through
1000 watts. Read forward or reflected power instantly by simply rotating the
element. The shock-mounted meter features a linear scale with mirror band to
improve reading accuracy. Interchangeable QC connectors add to the APM-16’s
versatility.

The APM-16’s high-accuracy, broad power/frequency handling, interchangeable
connectors, and capability to measure digital and analog signals give you an
instrument that will handle almost any RF power measurement application.

■

Accurately measures complex digital and analog RF signals.

■

Ideal for multicarrier transmission systems.

■

Easy-to-use. Operates just like any THRULINE®wattmeter.

■

Versatile plug-in elements cover all your present and future needs.

■

Ruggedly constructed and truly portable for demanding field use.

AVERAGE-READING POWER METER MODEL APM-16

Power Range: 1 W to 1000 W
Frequency Range: 2 MHz to 2.3 GHz
Accuracy:

10° to 35° C±4% reading, ±1% full scale
–20° to 50° C±6% reading, ±2% full scale

Peak/Avg. Ratio: In excess of 10 dB
Insertion VSWR: (with N connector)

1.05 max. to 1000 MHz

Settling Time: < 1 second
Meter: Shock mounted, linear scale with

expanded scales of 25, 50 and 100 for
full scale 1 to 1000 W readings.
Mirrored scale includes 5% overrange.

Temp. Ranges: –20° to 50° C operating;

–25° to 65° C storage

Humidity: 95% ±5% max. (noncondensing)

EMC: Complies with 92/31/EEC. Emissions,

EN55011; Immunity: EN-50082-2 at 10 V/M.

Safety: Complies with EN61010-1
Battery: Internal 9 volt ”transistor“

(NEDA No. 1604A) (100 hour life min.)

Connectors: QC Type

(Female N normally supplied)

Finish: Beige powder coat
Nominal Size: 67⁄8" L ×51⁄8" W ×35⁄8" D,

(175 mm

×

130 mm ×92 mm)

Weight: 3 lbs. (1.4 kg)
Elements: Special APM Series
Recommended Accessories: Case (page 24),

spare battery (page 61),
extra QC connectors (page 60)

Protect your wattmeter and organize accessories with a sturdy case. See page 24.

FREQUENCY BANDS (MHz)

POWER

2- 25- 50- 100- 200- 400- 950- 1100- 1700- 2200-

RANGE

30 60 125 250 500 1000 1260 1800 2200 2300

1W — APM-1A APM-1B APM-1C APM-1D APM-1E APM-1J APM-1K APM-1L APM-1M

2.5W — APM-2.5A APM-2.5B APM-2.5C APM-2.5D APM-2.5E APM-2.5J APM-2.5K APM-2.5L APM-2.5M
5 W APM-5H APM-5A APM-5B APM-5C APM-5D APM-5E APM-5J APM-5K APM-5L APM-5M

10 W APM-10H APM-10A APM-10B APM-10C APM-10D APM-10E APM-10J APM-10K APM-10L APM-10M
25 W APM-25H APM-25A APM-25B APM-25C APM-25D APM-25E APM-25J APM-25K APM-25L APM-25M

50 W APM-50H APM-50A APM-50B APM-50C APM-50D APM-50E APM-50J APM-50K APM-50L —
100 W APM-100H APM-100A APM-100B APM-100C APM-100D APM-100E APM-100J — — —
250 W APM-250H APM-250A APM-250B APM-250C APM-250D APM-250E APM-250J — — —
500 W APM-500H APM-500A APM-500B APM-500C APM-500D APM-500E — — — —

1000 W APM-1000H APM-1000A APM-1000B APM-1000C APM-1000D APM-1000E — — — —

APM ELEMENTS FOR APM-16

Phone: [phone] • Fax: [phone]

12

Product Page

Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Cables, Meter . . . . . . . . . . . . . . . . . . . . . . 61

Cases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Connector Adapter Kits . . . . . . . . . . . . . . 61

Elements (required on some models) . 25 – 28

Use the table below to quickly find products to enhance the versatility of your
THRULINE

®

Wattmeter.

Product Page

Field-Strength Element. . . . . . . . . . . . . . . 22

Loads/Terminations. . . . . . . . . . . . . . . . . . 42

Meter Movements . . . . . . . . . . . . . . . . . . 23

Peak Power Kit for Model 43. . . . . . . . . . 13

QC Connectors . . . . . . . . . . . . . . . . . . . . . 60

THRULINE

®

RF DIRECTIONAL WATTMETERS

Model 43, Accessory Guide

The Model 43 THRULINE®Directional Wattmeter accurately measures forward or
reflected power in coaxial transmission lines under any load condition. Each Model
43 consists of a line section, ”QC“ (Quick Change) connectors and an indication
meter housed in a rugged, corrosion-resistant aluminum case.

The line section is a high-precision 50-ohm coaxial air line that inserts between
the transmitter and the antenna or load. A socket is provided in each line section
for a plug-in element with the desired power rating and frequency range. Line
section ends are equipped with ”QC“-type connectors.

The Model 43 is supplied with two female ”N“-type ”QC“ connectors. These con­nectors can be interchanged in the field without affecting instrument calibration.

The instrument’s indicating meter is a shock-mounted 30-microampere meter with
scales of 25, 50, and 100; permitting full-scale direct-power reading from 100 milli­watts to 10,000 watts.

Plug-in elements determine the power rating and the frequency range, and these
values are marked on each element. The elements rotate to read both forward and
reflected power. There is no need for calibration charts or instrument adjustments.
Elements can be purchased at any time and replaced in the field. For added conve­nience, Model 43 connectors and elements are interchangeable with many other
Bird wattmeters.

Remote installation can easily be achieved by removing the Model 43‘s RF line
section and inserting it at any desired point in the line. For best visibility, the meter
itself can be relocated using the 32-inch meter cable supplied in the instrument
housing. Additional meter cable lengths can be ordered separately.

Power Range: 100 mW to 10 kW using

Bird Plug-in Elements.*

Frequency Range: 450 kHz to 2.7 GHz

(depending on element)

Insertion VSWR: with N Connectors

1.05 max. to 1000 MHz

Accuracy:

±

5% of full scale

Connectors: QC Type

(Female N normally supplied)

THE INDUSTRY STANDARD MODEL 43

ACCESSORIES, OPTIONS AND PARTS

Finish: Light Gray powder coat
Nominal Size: (includes connectors)

6

7

⁄8" H ×51⁄8" W ×35⁄8" D,

(175 mm

×

130 mm ×92 mm)

Weight: 3 lbs. (1.4 kg)
Optional Case: See page 24
Elements: Tables 1, 2, 3, 3A, 4, 6

on pages 25 – 26

Protect your wattmeter with
a sturdy case. Shown is a CC-1
carrying case with elements
and Model 4410 Series Wattmeter.

Over 250,000
Model 43 wattmeters
have been produced!

*

Quoted accuracy only when used with other Bird products.

E-mail: [email protected] • Internet: www.bird-electronic.com

SSB AM

CWFM

PULSE

13

THRULINE

®

RF DIRECTIONAL WATTMETERS

Peak-Reading Wattmeter, Peak Kit for Model 43

In 15 minutes, with no soldering, adapt your Model 43 wattmeter to read true peak
power output at ±8% of full-scale accuracy. The following specifications are as
installed in a Bird Model 43.

Power Range: 100 mW to 10 kW using

Bird Plug-in Elements.*

Frequency Range: 450 kHz to 2.7 GHz

(depending on element)

Accuracy: CW mode: ±5% full scale

Peak mode: ±8% full scale

PEAK POWER RETROFIT KIT MODEL 4300-400

Modulation: Normal voice audio; or
(Peak Mode) Rectangular pulses

Duty cycle 2% (min)
Repetition rate 100 pps (min)
Pulse width 200 µs (min)

Battery Life: 48 hours typical
Weight: Adds 1 lb. to Model 43

Portable peak-reading instrument designed specifically for measurement of air
navigational aids and other pulsed RF systems — such as telemetry, radar, television,
and command and control — as well as peak envelope power (PEP) measurement
of SSB and AM signals. Measures practically any type of 50-ohm coaxial transmission:
pulsed, AM, FM, CW.

An improved power system using two internal, 9-Volt alkaline, transistor batteries
enhances portability. An AC power adapter is also supplied.

Power Range: 100 mW to 10 kW using

Bird Plug-in Elements*

Frequency Range: 450 kHz to 2.7 GHz

(depending on element)

Insertion VSWR: (with N connectors)

1.05 max. to 1000 MHz

Accuracy:

±

5% of full-scale CW, ±8% PEP

Pulse Parameters: (min.) Pulse width 0.4 µs

(100-2300 MHz), 1.5 µs
(26–99 MHz) and 15 µs (2–25 MHz);
repetition rate 30 pps and duty factor
1

× 10–4min.

Battery: Two 9-Volt alkaline transistor batteries
Battery Life: 20 hours of operation, typical
AC Power: (using Bird adapter) 120 Vac,

60 Hz or 220 Vac, 60 Hz

PEP WATTMETER MODEL 4314B

Connectors: QC Type

(Female N normally supplied)

Finish: Light Gray powder coat
Nominal Size: (includes connectors)

6

7

⁄8" H × 51⁄8" W × 35⁄8" D,

(175 mm

× 130 mm × 92 mm)

Weight: 3 lbs. (1.4 kg)
Elements: Tables 1, 2, 3, 3A, 4, 5, 6

on pages 25 – 26

Recommended Accessories: Case (page 24),

spare batteries (page 61),
extra QC-connectors (page 60).

* Quoted accuracy only when used with other Bird products.

Accurately measure power in digital RF technology systems with our new APM-16
Advanced Power Measurement Wattmeter. See page 11.

Phone: [phone] • Fax: [phone]

14

THRULINE

®

RF DIRECTIONAL WATTMETERS

High-Power, RF Tap

The Model 4305A provides the ±5% of full-scale accuracy of the Model 43,
but offers extended power handling to 25 kW.

Power Range: 50 W to 25 kW using Bird

Plug-in Elements**

Frequency Range: 450 kHz to 2.3 GHz

(depending on element)

Insertion VSWR: with N connectors 1.05 max.
Accuracy:

±

5% of full scale

Connectors: QC Type

(Female N normally supplied)

Finish: Gray powder coat

HIGH-POWER WATTMETER MODEL 4305A

Nominal Size: (includes connectors)

6

5

⁄16" H × 51⁄8" W × 41⁄4" D,

(161 mm

× 131 mm × 108 mm )

Weight: 31⁄4lbs. (1.5 kg)
Elements: Tables 8, page 27 and 15⁄8" AA,

page 37

Recommended Accessories: Case (page 24),

extra QC connectors (page 60).

The combination Model 4431 THRULINE®Wattmeter provides the advantage of
an RF signal sample (for use with counters, oscilloscopes, spectrum analyzers, etc.)
at the same time a power measurement is made. Amplitude of the RF sample is
readily adjusted by a signal-coupling control knob mounted on the front of the
wattmeter case. Uses the same plug-in elements as the Model 43 Wattmeter within
its frequency and power ratings.

Power and Frequency Range: 5 kW max.

2 to 30 MHz, 1 kW max. 30 to 1000
MHz* using Bird Plug-in Elements**

Insertion VSWR: with N connectors

1.07 max.* to 1000 MHz

Accuracy:

±

5% of full scale

Insertion Loss: 0.1 dB max. (2–512 MHz);

0.2 dB max. (512–1000 MHz)*

RF Sample Output: Variable –15 to –70 dB

from BNC (Female) port

Connectors: QC Type

(Female N normally supplied)

VARIABLE RF TAP MODEL 4431

Finish: Gray powder coat
Nominal Size: (includes connectors)

6

7

⁄8" H × 51⁄8" W × 35⁄8" D,

(175 mm

× 130 mm × 92 mm)

Weight: 31⁄2lbs. (1.6 kg)
Elements: Tables 1, 2, 3, 3A, 4, 6 on

pages 25 – 26 (within power/frequency

range limits stated above)

Recommended Accessories: Case (page 24),

extra QC connectors (page 60).

See page 60 for a wide selection of QC connectors.

Our wide selection of power meters, elements, cases, loads, and other accessories
can be combined into a power measurement test set that’s perfect for you.
Please contact your local sales office to have a test set custom-tailored to your
exact requirements.

CUSTOM TEST SETS

* Applies only when coupling is less than 30 dB.

** Quoted accuracy only when used with other Bird products.

E-mail: [email protected] • Internet: www.bird-electronic.com

15

THRULINE

®

RF DIRECTIONAL WATTMETERS

Broadband, Multirange Wattmeters

The Model 4304A wattmeter is a popular choice of wireless communications
professionals. This rugged instrument is ideal for anyone who needs to quickly
test multiple power and frequency ranges. The versatile 4304A uses a single,
permanently mounted, 25–1000 MHz element to deliver full-scale measurements
from 5 to 500 watts. A high-quality line section keeps insertion loss to less than

0.10 dB from 25–512 MHz and 0.13 dB from 512–1000 MHz. The resulting full-scale
accuracy of ±6 to 7% (depending on frequency) is ideal for many two-way
communications applications.

Performance is stable to 1000 MHz. Insertion VSWR with the supplied N female
connectors is a maximum of 1.12 at 512–1000 MHz and will not exceed 1.08 VSWR
at 25–512 MHz.

Operation is exceptionally easy. Select the power range you want to measure
with the 5-position power selector switch. Forward and reflected power are
then measured by simply rotating the element. A chart mounted to the back
of the instrument lets you easily determine antenna or load VSWR from power
measurements.

Power Ranges: 5, 15, 50, 150, 500 W,

with no scale limitations except power
limited to 150 W from 800–1000 MHz

Frequency Range: 25 MHz to 1.0 GHz
Insertion VSWR: 25–512 MHz, 1.08 max.

(with UHF female conn.) 512–1000 MHz,

1.12 max.

Insertion Loss: 25–512 MHz, 0.10 dB max.

with UHF female conn. 512–1000 MHz
range, 0.15 dB max.

FIXED 25–1000 MHz, 5–500 WATT ELEMENT MODEL 4304A

Accuracy: 25–100 MHz, ±7% of full scale,

using correction charts. 100–512 MHz,
±

6% of full scale, no correction needed.
512–1000 MHz, ±7% of full scale, no
correction needed.

Connectors: QC Type

(Female N normally supplied)

Finish: Light Gray powder coat
Nominal Size: 67⁄8" H × 51⁄8" W × 35⁄8" D,

(175 mm

× 130 mm × 92 mm)

Weight: 3 lbs. (1.36 kg)
Recommended Accessories: Case (page 24),

extra QC-connectors (page 60).

Need to measure complex digital technology signals? See the new APM-16 on page 11.

The Model 4308 was designed to provide easy ±5% full-scale accurate measurements
of analog cellular systems and subscriber equipment. If you work with digital cellular,
we recommend the APM-16 found on page 11 that handles both digital and analog
RF technologies.

A permanently mounted element and 4-position power selector switch facilitate
measurements of 1.5, 5, 15, or 50 watts full-scale from 440 to 960 MHz. This instru­ment is also a good choice for low-to-medium power measurements in the UHF and
800–960 MHz bands.

Power Ranges: 1.5, 5, 15, 50 W, with

no scale limitations

Frequency Range: 440–960 MHz
Insertion VSWR: 1.05 with TNC connectors

(QC type)

Accuracy:

±

5% of full scale

Impedance: 50 ohms, nominal
Connectors: QC Type

(Female TNC normally supplied)

CELLULAR SPECIALIST WATTMETER MODEL 4308

Finish: Gray powder coat
Nominal Size: 67⁄8" H × 51⁄8" W × 35⁄8" D,

(175 mm

× 130 mm × 92 mm)

Weight: 3 lbs. (1.36 kg)
Recommended Accessories:

CC-1 case (page 24).

Phone: [phone] • Fax: [phone]

16

THRULINE

®

RF DIRECTIONAL WATTMETERS

Multipower Level, Superior Sensitivity

Our 4410 Series high-sensitivity wattmeters are solid choices for field-service applica­tions where the greater dynamic range of the plug-in elements substantially reduces
the number of elements needed to cover multiple power and frequency ranges.
The 4410 series is also well-suited to laboratory work where power levels as low
as 2 milliwatts must be measured with high accuracy.

Each 4410 Series wattmeter plug-in element is capable of reading seven different
power ranges covering 0.002* to 10,000 watts. The power ranges of the different
elements overlap and include: 0.002–10 W, 0.02–100 W, 0.2–1000 W and 2–10,000 W.
All ranges are in frequency bands from 200 kHz to 2300 MHz. Any one of the seven
power ranges is selected by a rotary switch located on the front of the wattmeter.
Forward and reflected power measurements are accomplished by rotating the
element. See Element Tables 9 through 12 on page 27.

Exceptional ±5% of reading accuracy is achieved via a built-in temperature compen­sation circuit. This stated accuracy applies from 100% of full scale down to 20%
of full scale across all seven ranges.

Two portable models are available:

Model 4410A powered by a 9-volt alkaline, transistor-type, battery.
Model 4412 AC powered with rechargeable NiCd battery.

Models: 4410A and 4412
Power Range: 2 mW to 10 W, 20 mW to

100 W, 200 mW to 1 kW or 2 W to
10 kW full scale in one single Plug-in
Element. Any Bird Series 4410-Element
may be used.

Frequency Range: 200 kHz to 2.3 GHz CW

or FM.

Insertion VSWR: with N Connectors 1.25 max.

to 2300 MHz

Accuracy:

±

5% of reading for any reading
above 20% of the Power Range selected
for FM or CW signals without AM. This
accuracy is maintained for a full 37 dB
dynamic range with each 4410 Element
(except No. 4410–1 200 kHz–535 kHz
which is accurate to ±10% of reading,
and 4410-15 1.0–1.8 GHz and 4410-16

1.8–2.3 GHz which are accurate to ±8%
of reading.)

Ambient Temperature Range: Elements

4410-1 through –8 and –10 through –16
are temperature compensated for rated
accuracy from 0˚C to 50˚C (32˚ to 122˚F),
and 4410-20 through 27 from 20˚C to
30˚C (68˚ to 86˚F).

MULTIPOWER, ±5% READING ACCURACY 4410 SERIES

Over-Range Protection: To 120% of nominal

full scale (i.e. 12 W, 120 W, 1,200 W, or
12,000 W). No damage or degradation
to the unit will result, regardless of the
Range Selector Switch position.

Battery Life: Model 4410A: 24 hrs.

min. with standard 9 V alkaline
“transistor” battery (NEDA No. 1604A
supplied). Model 4412: 7 hrs. min.
(rechargeable).

AC Power: Models 4412:

105

−125/210−250 Vac, 50/60 Hz

with integral selector switch

Connectors: QC Type

(Female N normally supplied)

Finish: Gray powder coat
Nominal Size: (includes connectors)

6

7

⁄8" H × 51⁄8" W × 35⁄8" D,

(175 mm

× 130 mm × 92 mm)

Weight:

Model 4410A: 3 lbs. (1.4 kg).
Model 4412: 3

1

⁄3lbs. (1.5 kg)

Elements: Tables 9, 9A, 10, 11, 12 on page 27
Recommended Accessories: Case (page 24),

spare battery (page 61), extra QC­connectors (page 60).

* On the 10 mW scale

Need even greater accuracy? See our laboratory grade instruments on pages 6–8.

Each 4410 Series
power element has seven
overlapping power levels
to reduce the number
of elements you need.

E-mail: [email protected] • Internet: www.bird-electronic.com

17

THRULINE

®

RF DIRECTIONAL WATTMETERS

Panel-Mount Wattmeters with Line Sections

Bird’s 4500 Series wattmeters are panel-mount versions of the time-tested Model 43
wattmeter. They will measure power in CW and FM systems that employ 50-ohm
cable or

7

⁄8" EIA transmission line. All models include a precision line section and
either one or two 3-scale analog meters to give you full-scale direct readings from
100 mW to 10 kW. The rack panel fits standard 19-inch equipment racks. Plug-in
elements — the same used with the Model 43 — are sold separately. Depending
on the element selected, Models 4521, 4522 and 4526 will cover frequencies from

0.45 to 2700 MHz. Measurement accuracy is ±5% of full scale.
The Model 4521 has a single element socket and meter. Forward and reflected

power are measured by rotating the element.
The single-meter Model 4522 has two element sockets. The second socket permits

the use of a more sensitive element to measure reflected power and let you more
accurately determine VSWR. A selector switch changes the display between forward
and reflected power.

In addition to the sensitivity advantage provided by two element sockets, the dual
meter Model 4526 simultaneous displays forward and reflected RF power.

Models: 4521, 4522, 4526
Power Range: 100 mW to 10 kW using

Bird Plug-in Elements.*

Frequency Range: 450 kHz to 2.7 GHz

(depending on element)

Insertion VSWR: with N Connectors

1.05 max. to 1000 MHz

Accuracy:

±

5% of full scale

0.45–2700 MHz MODELS 4521, 4522, AND 4526

Connectors: QC Type

(Female N normally supplied)

Finish: Gray powder coat
Nominal Size: 19" W × 57⁄32" H × 111⁄16" D,

(483 mm

× 133 mm × 43 mm)

Weight: 31⁄2 lbs. (1.6 kg)
Elements: Tables 1, 2, 3, 3A, 4, 6

on pages 25 – 26

Power Range: 100 mW to 1 kW using

Bird Plug-in Elements.*

Frequency Range: 2 to 512 MHz

(depending on element)

Insertion VSWR: with N Connectors

1.05 max. to 512 MHz

Accuracy:

±

5% of full scale

RF Sample Output: Fixed at –53 dB from

512 to 10 MHz, decreasing to –70 dB
at 2 MHz BNC (Female) port

Connectors: QC Type

(Female N normally supplied)

Finish: Gray powder coat
Nominal Size: 19" W × 57⁄32" H × 111⁄16" D,

(483 mm

× 133 mm × 43 mm)

Weight: 31⁄2lbs. (1.6 kg)
Elements: 2 to 512 MHz models within

Tables 1, 2, 6 on pages 25–26

* Quoted accuracy only when used with other Bird products.

Wattmeters for rigid line use are on pages 29–33 and 35.

Top to Bottom:

MODELS
4521, 4522, 4526

The panel-mount Model 4527 is tailored for 2-way mobile applications in the
2–512 MHz range. Like the Model 4526 described above, it has dual-element sock­ets and meters. These features let you determine VSWR more precisely via using a
more sensitive reflected power element, and simultaneously read forward and
reflected power. In addition, an RF sampling output (female BNC) is included.
Select elements up to 1000 watts from 2 – 200 MHz and up to 500 watts
from 200 – 512 MHz.

2–512 MHz WITH SAMPLER PORT MODEL 4527

MODEL 4527

Phone: [phone] • Fax: [phone]

18

12 AND 24 CHANNEL POWER METERS 4201 SERIES

THRULINE

®

RF DIRECTIONAL WATTMETERS

Multichannel Power Meters

MODEL 4201A503

24 Channel RF Power Meter

Models: 4201A501, 4201A502
Power Range: 10 mW to 10 kW using Bird

Plug-in Elements*

Frequency Range: 450 kHz to 2.7 GHz

(depending on elements)

Accuracy:

±

5% of full scale

Meter Scales: FWD and RFL 25, 50,

and 100 W

Meter Sensitivity: 30 µA/1400Ω
Front Panel Controls: One or two rotary

channel selector switches, channel A/B
push-button on 24 channel, enable/
disable push-button on 12 channel.

Connectors: RCA phono jacks

Finish: Gray powder coat
Nominal Size: 19" W × 57⁄32" H × 5" D,

(483 mm

× 133 mm × 127 mm)

Weight:

4201A501: 33⁄4lbs. (1.7 kg)
4201A502: 2

7

⁄8lbs. (1.3 kg)

Required Products:

Line Section: 4230-053 or 4522-002-5
on page 23
Elements: Tables 1, 2, 3, 3A, 4, 6
on pages 25–26
Cables: 10 ft. – 4201A008-1, 15 ft. –
4201A008-2, 25 ft. – 4201A008-3

Models: 4201A503, 4201A504
Power Range: Sensor dependent
Frequency Range: Sensor dependent
Accuracy:

±

5% of full scale

Meter Scales: FWD and RFL 15, 30, and 60 W
Meter Sensitivity: 30 µA/1400Ω
Front Panel Controls: One or two rotary

channel selector switches, channel A/B
push-button on 24 channel, enable/
disable push-button on 12 channel.

Connectors: RCA phono jacks

Finish: Gray powder coat
Nominal Size: 19" W × 57⁄32" H × 5" D,

(483 mm

× 133 mm × 127 mm)

Weight:

4201A503: 33⁄4lbs. (1.7 kg)
4201A504:2

7

⁄8lbs. (1.3 kg)

Required Products:

Power Sensor: Order from below
Cables: 10 ft. – 4201A007-1, 15 ft. –
4201A007-2, 25 ft. – 4201A007-3

Insertion VSWR: 1.1 max.
Insertion Loss: 0.2 dB
Directivity: 25 dB min.
Accuracy:

±

5% of full scale

Connectors:

RF Input: Female N
RF Output: Female N
DC Outputs: Solder Lugs

Finish: Gray powder coat
Nominal Size: (includes connectors)

4

1

⁄2" W × 11⁄4" H × 1" D,

(114 mm

× 32 mm × 25 mm)

Weight: 4.5 oz. (128 grams)

POWER SENSORS FOR 4201A503/4201A504

Need to measure complex digital technology signals? See the new APM-16 on page 11.

MODEL CHANNELS METER SCALE EACH TRANSMITTER REQUIRES

4201A501 24 25/50/100 W Dual Line Section and Elements
4201A502 12 25/50/100 W Dual Line Section and Elements
4201A503 24 15/30/60 W Power Sensor
4201A504 12 15/30/60 W Power Sensor

The 4201 Series panel-mount wattmeters make it easy to measure RF power
in cellular sites and two-way radio base stations that have multiple transmitters.
You can monitor up to 24 transmitters by simply turning a channel-selector knob
on the front panel. Dual meters simultaneously display forward and reflected
power at ±5% full scale accuracy.

Power Sensors (see below) or Plug-in Elements determine frequency and power
ranges. Each transmitter requires a power sensor or a dual-socket line section with
two elements.

FORWARD POWER REFLECTED POWER FREQUENCY

MODEL

MAXIMUM MAXIMUM RANGE

4152-220 150 W 15 W 30 – 88 MHz
4163-240 150 W 15 W 118 – 250 MHz
4164-240 150 W 15 W 420 – 512 MHz
4169-300 60 W 6 W 805 – 960 MHz

MODEL 4201A504

12 Channel RF Power Meter

* Quoted accuracy only when used with other Bird products.

E-mail: [email protected] • Internet: www.bird-electronic.com

19

THRULINE

®

RF DIRECTIONAL WATTMETERS

WATTCHER®RF Monitoring System

The Model 3128A WATTCHER®RF monitoring and alarm system can automatically
activate a variety of safety and equipment protection measures when it detects
an abnormal antenna system load condition. The 3128A WATTCHER

®

simultaneously displays forward and reflected power for 100 mW to 10 kW
systems and signals audible and visual alarms if reflected power exceeds the limit
you set for more than 50 ms. The instrument’s DPDT interlock relay can also be
wired to shutdown the transmitter, activate de-icing equipment, signal a remote
alarm and initiate other measures to protect your equipment from high VSWR.

Some important Model 3128A features include:

■

Mirrored scale meters aid reading and help eliminate parallax.

■

Separate push-button reset control and LED indicators added.

■

Improved circuitry reduces the chance of false alarms.

■

Can be wired for automatic, unattended reset
when alarm condition clears.

■

Rear connection panel speeds installation or removal.

■

Tested and found EMC compliant.

Power Range: 100 mW to 10 kW using Bird

Plug-in Elements*

Frequency Range: 450 kHz to 2.7 GHz
Accuracy:

±

5% of full scale

Meter Scales: FWD and RFL 25, 50, and 100 W
Meter Sensitivity: 30 µA/1400 Ω
Alarms: Front-panel buzzer and red LED
Front Panel Controls: Reset push-button,

reflected power limit display button,
adjust alarm level recessed screw

Rear Panel Features: FWD/RFL DC signal

inputs (BNC), DC power/remote reset
connector, DPDT interlock relay connector,
fail-safe/nonfail-safe selector, alarm
buzzer disable, AC line voltage selector,
safety fuses and IEC 320 AC receptacle.

100 mW – 10 kW WATTCHER

®

MODEL 3128A

Cable: Includes two 25 ft. DC cables
AC Power: 115/230 Vac, 50/60 Hz, @ 0.125A
DC Power: 9 – 16 Vdc @ 1A
Finish: Gray powder coat
Nominal Size: 19" W × 57⁄32" H × 33⁄4" D,

(483 mm

× 133 mm × 95 mm)

Weight: 5 lbs. (2.28 kg)
Required Products:

Line Section: 4230-053 or 4522-002-5
from page 23
QC Connectors: Two from page 60
Elements: Two from Tables 1, 2, 3, 3A,
4 or 6 on pages 25-26

* Quoted accuracy only when used with other Bird products.

WATTCHERS for 250 – 100,000 watt rigid line systems are found on pages 32–33.

MODEL 3128A

Features a reflected
power alarm

Phone: [phone] • Fax: [phone]

20

THRULINE

®

RF DIRECTIONAL WATTMETERS

High-Speed WATTCHER®RF Monitoring System

Our Model 3170A WATTCHER®gives you ultra fast response time and a forward
power drop-off alarm in addition to the capabilities of the Model 3128A. It also
includes a line section complete with two QC-type N (Female) connectors to insert
in your coaxial transmission line, and handles power from 100 mW to 10 kW.

This RF monitoring system can protect your transmitting equipment from damage —
and loss of air time — when faults cause high-standing waves. It can warn a remote
operator of: 1) low power due to detuning, component deterioration, or AC line
difficulties, and 2) high reflected power due to factors such as antenna icing,
transmission line problems, physical accidents and lightning strikes. The solid state
Model 3170A:

■

Displays a continuous, simultaneous view of forward and reflected power
which can be remoted.

■

Provides fast-fault response time — 250 times faster than other monitors —
for forward and reflected power monitoring.

■

Alerts you to forward power drop-off below a set level
(e.g. to conform to appropriate FCC requirements).

■

Activates audible/visual alarms when reflected power increases.

■

Allows remote reset in the event of a false alarm or momentary
disturbance which leaves transmission unimpaired.

■

Operates from AC or DC.

Power Range: 100 mW to 10 kW using

Bird Plug-in Elements*

Frequency Range: 450 kHz to 2.7 GHz
Insertion VSWR: with N connectors 1.05 max.

to 1000 MHz, 1.1 max. to 2700 MHz

Accuracy:

±

5% of full scale

Meter Scales: FWD and RFL 25, 50,

and 100 W

Alarms: Front-panel buzzer, “Active”

and “Trip” LEDs for forward/reflected

Response Time: 25 µs max.
Activate Forward: 73 µs to 50 ms

nominal (adjustable) monitor delay

Front Panel Controls: Reset push-button,

adjust FWD/RFL alarm levels screw,
element sockets

Rear Panel Features: DC FWD/RFL signal

inputs, main and remote meter drive
outputs, external 12–16 Vdc supply input,
alarm in/out, reset in/out, AC line voltage
selector, fuse, IEC 320 AC receptacle.

HIGH SPEED, FWD/RFL ALARM WATTCHER

®

MODEL 3170A

Inputs/Outputs: TTL compatible +5 V logic.

Outputs for remote meter

AC Power: 115/230 Vac, 50/60 Hz, @ 56 mA
DC Power: 12.7 to 16.0 Vdc @ 400 mA max.
Connectors: QC Type

(Female N normally supplied)

Finish: Gray powder coat
Nominal Size: 19" W × 57⁄32" H × 95⁄16" D,

(483 mm

× 133 mm × 237 mm)

Weight: 7 lbs. (3.2 kg)
Required Products:

Elements: Two from Tables 1, 2, 3, 3A,
4 or 6 on pages 25–26

* Quoted accuracy only when used with other Bird products.

WATTCHERS for 250 – 100,000 watt rigid line systems are found on pages 32–33.

MODEL 3170A

Features 25 µs response,
forward and reflected
power alarms

E-mail: [email protected] • Internet: www.bird-electronic.com

21

THRULINE

®

RF DIRECTIONAL WATTMETERS

Multifunction RF POWER ANALYST

®

The ruggedly built, multifunction Model 4391A RF POWER ANALYST®features a
digital display, microprocessor-based operation, and simplified, push-button control.
This wattmeter is well suited to C

3

, telemetry, two-way communications, avionics

and radar, as well as standard radio and television applications.

■

Frequency: 0.45 to 2700 MHz. Power: 100 mW to 10 kW

with 20% over-range.

■

Reads forward and reflected CW or FM power in watts or dBm,

Peak Envelope Power of SSB/DSB and symmetrical AM in watts,
and peak power for pulses as narrow as 0.8 µs.

■

Calculates SWR, return loss in dB and % modulation

■

Stores peak and null readings to facilitate adjustment

of maximum and minimum signal levels.

■

Shock-resistant keyboard and range switches. RFI protection.

Built-in international power supply/charger.

Model: 4391A
Power Range: 100 mW to 10 kW using

Bird Plug-in Elements*

Frequency Range: 450 kHz to 2.7 GHz
Insertion VSWR: with N Connectors

1.05 max. to 1000 MHz

Accuracy: Power Readings:

±

5% of full scale

CW, ±8% PEP;

VSWR:

±

10% of reading

% Modulation: (CW power

1

⁄3 or more of

full scale) ±5% (0–90%), ±10% (90–100%)

Usable Over-range: to 120% of scale

(CW, PEP, SWR and Return Loss)

Sampling Rate: 2 to 3 readings per second
Display: 31⁄2digit, 0.3" LED strobed
Modulation Frequency: 25 to 10,000 Hz (Audio)
Pulse Parameters: (min.) Pulse width 0.8 µs

(100–2700 MHz), 1.5 µs
(26–99 MHz) and 15 µs (2–25 MHz);

RUGGED, PEP RF POWER ANALYST

®

MODEL 4391A

Repetition Rate 25 PPS, and Duty Factor
1 x 10

–4

min.

Return Loss:

±

0.3 dB to corresponding

SWR value

Battery Life: 8 hours (rechargeable)
AC Power: 100–130/200–260 V, 50/60 Hz, 6 W
Connectors: QC Type

(Female N normally supplied)

Finish: Blue vinyl with silver anodized side panels
Nominal Size: (includes connectors)

9

9

⁄16" L × 57⁄32" W × 45⁄16" H

(243 mm

× 158 × 110 mm)

Weight: 53⁄4lbs. (2.6 kg)
Elements: Select 2 elements in a 10:1 power

ratio from Tables 1, 2, 3, 3A, 4, 5, 6 and
14 on pages 25 – 28.

Recommended Accessories: Case (page 24).

IEEE-488 Model: 4380A-488
Output: 31⁄2digit ASCII format
Logic Levels: Meets all IEEE standards 488-1978 specifications
GPIB Capabilities: Supports AH1, SH1, T5, L4 SR1, RL0, PP0, DC1,

DT1, C0 and E1

Environment: Operating temperature range 0˚C to +50˚C.

Storage temperature range –40˚C to +100˚C

AC Power: 100–130/200–260 Vac 50/60 Hz
Dimensions and Weight: 53⁄8" L × 31⁄4" W × 101⁄2" H

(137 mm

× 82 mm × 267 mm); 2 lb. 10 oz. (1.2 kg)

Output Connector: 24-pin IEEE-488 standard connector
Cable Supplied: 20 in. interconnecting cable to Bird

RF POWER ANALYST

®

Optional Cables: 31⁄4ft. (1 m) IEEE-488 bus interface cable, P/N

5-1317-1; 6

1

⁄2ft. (2 m) IEEE-488 bus interface cable, Bird P/N

5-1317-2; Use of longer bus interface cables is not recommended.

RS-232 Model: 4380A-232
Output: 31⁄2digit ASCII format
Logic Levels: Meets all EIA standard RS-232C specifications
Environment: Operating temperature range 0˚C to +50˚C.

Storage temperature range –40˚C to +100˚C

AC Power: 100–130/200–260 Vac 50/60 Hz
Dimensions and Weight: 53⁄8" L × 31⁄4" W × 101⁄2" H

(137 mm

× 82 mm × 267 mm); 2 lbs. 10 oz. (1.2 kg)

Output Connector: Standard 25-pin subminiature D style RS-232
Cable Supplied: 20 in. interconnecting cable to Bird RF

POWER ANALYST

®

Optional Cables: 5 ft. (1.5 m) RS-232 bus interface cable,

Bird P/N 5-1662-1; 10 ft. (3 m) RS-232 bus interface cable,
Bird P/N 5-1662-2.

* Quoted accuracy only when used with other Bird products.

MODEL 4391A

Our interface units (IEEE-488 shown above or RS-232) let
you remotely control a POWER ANALYST

®

Wattmeter’s
functions. Either interface requires a 15-pin connector on
the rear of any Model 4380/4390 Series wattmeter. The
connector and internal cabling are installed in a new

Model 4391A POWER ANALYST

®

, or in older wattmeters
having the suffix -832 in the Model number (e.g. Model
4391-832). Any 4380/4390 Series Wattmeter you already
own without this connector can be retrofitted at our plant.

BUS INTERFACE UNITS MODELS 4380A-488, 4380A-232

MODEL 4391A
AND 4380A-488

(Model 4380A-488 IEEE-488
interface unit described below.)

Phone: [phone] • Fax: [phone]

FREQUENCY MHz

COUPLING

MAX

MIN

2 5 10 20 50 100 200 500 1000

– 30 dB

– 40 dB

– 50 dB

– 60 dB

– 70 dB

– 80 dB

FREQUENCY MHz

COUPLING

MAX

MIN

2 5 10 20 35 50

–30 dB

–40 dB

–50 dB

–60 dB

–70 dB

–80 dB

22

VARIABLE RF SIGNAL SAMPLERS,
FIELD-STRENGTH METERS

The Model 4273 (1.5 to 35 MHz, 5 kW max.) and Model 4275 (20 to 1000 MHz,
1 kW max.) are “stand-alone,” wide-range THRULINE

®

RF coupling probes for spec­trum analysis, RF signal observation on a scope, or frequency counting and control.
They feature very low VSWR throughout a broad frequency and attenuation range.
Insertion loss is a negligible 0.1 dB. Both Models produce an unrectified sample
at the BNC port that is adjustable. Once adjusted, the setting can be locked in
place. The main power line connectors are Bird QC type.

Power Ratings: Model 4273: 5 kW max;

Model 4275; 1 kW max.

Frequency Range: Model 4273: 1.5 – 35 MHz;

Model 4275: 20 – 1000 MHz

Impedance: 50 ohms nominal
Insertion VSWR: with N connectors

Model 4273: 1.07 max. Model 4275:

1.1 max. 2 to 512 MHz, 1.25 max.
512 to 1000 MHz.

Insertion Loss: Model 4273: 0.1 dB max.

Model 4275: 0.1 dB max. 2 to 512 MHz,

0.2 dB max. 512 to 1000 MHz.

Coupling: Adjustable as shown within ±3 dB
Ambient Temperature Range: –40˚C to +45˚C
Connectors: QC type as specified

(no connectors required for 4275-100,
which is a sampler accessory for Bird

RF SIGNAL SAMPLERS MODELS 4273, 4275

instruments already equipped with
QC connectors)

Finish: Bright silver plate
Nominal Size: 251⁄64" L × 27⁄8" W × 11⁄4" D,

(71 mm

× 73 mm × 32 mm)

Weight: 10 oz. (280 g)

The modestly priced Model 4030 Relative Field-Strength Element expands the
capabilities of the Model 43 and other Bird THRULINE

®

wattmeters with 30 µA

meters by helping you optimize the radiated signal of any transmitter from
2–1000 MHz. It automatically turns on when plugged into the element socket and
features a gain control to adjust sensitivity to various field intensities. The Model
4041 Meter is a self-contained, compact instrument that performs exactly the same
functions as the 4030 Element.

FIELD-STRENGTH ELEMENT AND METER MODELS 4030, 4041

*Choose any two connectors from page 60.
**Accessory sampler for a Bird Instrument. Remove the instrument’s QC connector, place on sampler

and bolt both with the instrument.

Model: 4030
Frequency Range: 1 to 1000 MHz
Dynamic Range: 30 dB min.
Typical Sensitivity: Full scale deflection at

8 ft. (2

1

⁄2m) from a 1 W source broad­casting at 150 MHz through a quarter
wave antenna

Output Characteristics: Compatible with

30 µA meter instruments

(Models 43, 43P, 4305A, 4314B, 4410, 4430,
4431, 4521, 4522, 4526, 4527)

Battery Life: 100 hours min.
Battery Type: Three, 3V Lithium-Manganese

Dioxide, cells (Duracell DL2032 or
equivalent)

Ambient Temp Range: 0˚C to +50˚C
Weight: (includes batteries) 3 oz.

Model: 4041
Frequency Range: 1 to 1000 MHz
Dynamic Range: 30 dB min.
Typical Sensitivity: Full-scale deflection at

8 ft. (2

1

⁄2m) from a 1 W source broad­casting at 150 MHz through a quarter
wave antenna

Battery Life: 200 hours min.

Battery Type: One, 9V alkaline, “Transistor”

battery (NEDA No. 1604A)

Ambient Temp Range: 0˚C to +50˚C
Finish: Black anodized
Nominal Size: (w/o antenna) 43⁄8" L × 21⁄4" W

× 115⁄16" D, (111mm × 57mm × 49mm)

Weight: (includes batteries) 10 oz. (283 g)

MODEL/PART NO: QC – CONNECTORS:

4273-020 4275-020 N: Male/Female
4273-025 4275-025 N: Female/Female
4273-030 4275-030 UHF: Male/Female
4273-035 4275-035 UHF: Female/Female

4273 4275 None*

4273-100 4275-100 None Required**

MODEL 4030 ELEMENT

MODEL 4041 METER

MODEL 4273-030

MODEL 4275

MODEL 4273

E-mail: [email protected] • Internet: www.bird-electronic.com

23

THRULINE

®

WATTMETER COMPONENTS

Meter Movement and Line Sections for 50-Ohm Cable Wattmeters

The Model 8-000 and Model 4210A100 meters, when combined with appropriate

7

⁄8" line section, QC connectors, and elements, enable you to assemble custom rack-

mount or benchtop wattmeters. The Model 8-000 is the same 3

1

⁄2"-diameter unit

used in our Model 43. The 4210A100 is 3

1

⁄4" square meter premounted in

an aluminum case. Both feature 30 µA/1400 Ω movements and include a cable
with DC connector. Both are used with elements from Tables 1, 2, 3, 3A, 4, 6 and14.

METER MOVEMENT 30 µA

Pages 25–28 present the full range of Plug-in Elements.

MODEL TYPE CURRENT SCALES USE WITH ELEMENT TABLES

8-000 31⁄2" Round Kit w/ Cable 30 µA/1400 Ω 25/50/100W 1, 2, 3, 3A, 4, 6, and 14

4210A100 3

1

⁄4" Square Meter in Housing 30 µA/1400 Ω 25/50/100W 1, 2, 3, 3A, 4, 6, and 14

LINE CONNECTOR ELEMENT LENGTH WEIGHT USE WITH

MODEL

TYPE* TYPE SOCKETS (INCHES) (LBS.) WATTMETERS

4230-018 Cable QC-N(F) 1 51⁄2 11⁄3 —
4230-006-1 Cable QC(not incld.) 1 4 1 —
4230-059 Cable QC(not incld.) 1 w/bracket 4 1

1

⁄4 —

4230-053 Cable QC(not incld.) 2 4 1 3128A, 4201A501, 4201A502,

4210A100, 8-000

4522-002-5 Cable QC(not incld.) 2 panel mt. 6

7

⁄32 11⁄4 3128A, 4201A501, 4201A502,

4210A100, 8-000

4501-000

7

⁄8" Flg. 1 4 1 —

4502-000

7

⁄8" Flg. 2 4 11⁄4 3128A, 4201A501, 4201A502,

4210A100, 8-000

Line sections to use with 50-ohm cable and 7⁄8" rigid line are listed below. Page 34
contains 1

5

⁄8", 31⁄8", 41⁄16", and 61⁄8" line sections.

Elements for the line sections below are found in Tables 1, 2, 3, 3A, 4, 6, and 14
on pages 25–28. Table 5 on page 27 can also be used with these products.

See page 60 for QC-Type connectors.

LINE SECTIONS CABLE, 7⁄8" RIGID LINE

* Cable = Use with cable connectors.

7

⁄8” = Use with 7⁄8" rigid line.

MODEL 4522-002-5

MODEL 8-000

MODEL 4210A100

MODEL 4230-053

Phone: [phone] • Fax: [phone]

24

WATTMETER
AND ACCESSORY CASES

See our other wattmeter accessories: Attenuators (pages. 54–58), Batteries (page 61),
Connector Adapters and Kits (page 61), Loads (pages. 42–53), Signal Samplers (page 22),
and QC and SQC Connectors (pages. 60).

We offer a complete selection of sturdy cases specially designed to protect your
THRULINE

®

Wattmeter and organize elements and accessories.

CC Series cases are crafted from top-grade expanded vinyl that looks and feels
like brown leather, but requires none of the care. Brass-plated hardware and an
embossed Bird seal add to the handsome appearance. The interiors of the Models
CC-1 and CC-3 feature velcro closures and cutouts to secure accessories plus a
43-size wattmeter.

The Model EC-1 element case lets you organize up to 12 Plug-In elements in a
die-cut foam insert. The exterior is crafted from high-density expanded vinyl, with
a tanned brown finish and gold-tone hardware.

Hard-sided 4300 Series cases include shock-absorbing laminated die-cut foam inserts.
These cases feature fold down handles, quick-release latches, rigid aluminum frame
and durable polyurethane shell.

CASES CC, EC, 4300 SERIES

MODEL CASE HOLDS

CC-1 Portable THRULINE®Wattmeter* and 6 elements
CC-2 Mini-Monitor
CC-3 Portable THRULINE

®

Wattmeter*, load, and 3 elements
EC-1 12 elements
4300-061 Model 43 or 43P Wattmeter, load, signal sampler, QC connectors, and 4 elements
4300-070 Portable THRULINE

®

Wattmeter*, test cable, screw driver, QC connectors, and 15 elements
4300-085 4391 POWER ANALYST

®

, signal sampler, and 4 elements
4300-055 4410 Wattmeter, load, elements, and other accessories
4300A215 4421 Wattmeter and power sensors
7000A850 AT-100, AT-400, AT-800 Antenna Testers

* Includes THRULINE®Wattmeter Models: APM-16, 43, 43P, 4304A, 4308, 4314B, 4410A, 4430 and 4431.

MODEL CC-1

MODEL EC-1

MODEL 4300-085

MODEL 4300A215

E-mail: [email protected] • Internet: www.bird-electronic.com

25

PLUG-IN ELEMENTS

Selection Guides, Standard and Low Power

All Bird Plug-In Elements are manufactured in accordance with meticulous calibration
procedures, supported by more than a quarter-century history of mean deviation
values. This assures adherence to advertised specifications of our current instruments
as well as field interchangeability with Bird equipment you might have purchased
many years ago. Stated instrument accuracies cannot be guaranteed with components
not supplied by Bird.

Pages 25–28 contain the most popular elements for wattmeters used with 50-ohm
cable (elements for rigid line use are on pages 36–38). While our large selection
lets you almost customize your Bird wattmeter, one or two elements are sufficient
for most applications. Always specify your wattmeter or line section number when
ordering elements.

Unless noted otherwise, element tables listed below are found on pages 25–28.

WATTMETER SELECT ELEMENT

MODEL FROM TABLE(S)

APM-16 APM Table

3128A 1, 2, 3, 3A, 4, 6, 14*
3170A 1, 2, 3, 3A, 4, 6, 14*

43 1, 2, 3, 3A, 4, 6, 14*

43P 1, 2, 3, 3A, 4, 5, 6

4304A

—

4305A 8, 1

5

⁄8AA**

4308 —
4314B 1, 2, 3, 3A, 4, 5, 6, 14*
4391A 1, 2, 3, 3A, 4, 5, 6, 14*

4410A, 4412 9, 10, 11, 12, 14*

4431 1, 2, 3, 3A, 4, 6, 14*

4521, 4522 1, 2, 3, 3A, 4, 6, 14*

4526 1, 2, 3, 3A, 4, 6, 14*

4527 1, 2, 6, 14*

6151 1, 2, 3

ELEMENT MIN PWR MAX PWR. MIN FREQ MAX FREQ SEE

TABLE (WATTS F.S.) (WATTS F.S.) (MHz) (MHz) PAGE

APM 1 1000 2 2300 28

1 5 5000 2 1000 25
2 1 2.5 25 1000 25
3 1 250 950 2700 26

3A 0.1 0.5 950 2600 26

4 1000 10,000 0.45 2.5 26
5 500 10,000 2 1260 27
6 0.1 0.5 45 1000 26
8 50 25,000 0.45 2300 27

9 0.01 10 30 1000 27
9A 0.001 1 864 970 27
10 0.1 100 25 2300 27
11 1 1000 2 1000 27
12 10 10,000 0.2 30 27
14 1000 1000 50 1250 28

ELEMENT SELECTION GUIDE

* Table 14 describes coupler elements used for RF sampling.

The instrument meter does not read when these elements are
installed, but simply serves as a line section.

** See page 37 for Table 1-5/8AA

ELEMENT TABLE FREQUENCY AND POWER LIMITS

FREQUENCY BANDS (MHz)

POWER RANGE

2-30 25-60 50-125 100-250 200-500 400-1000

5 W — 5A 5B 5C 5D 5E
10 W — 10A 10B 10C 10D 10E
25 W — 25A 25B 25C 25D 25E
50 W 50H 50A 50B 50C 50D 50E

100 W 100H 100A 100B 100C 100D 100E
250 W 250H 250A 250B 250C 250D 250E

500 W 500H 500A 500B 500C 500D 500E
1000 W 1000H 1000A 1000B 1000C 1000D 1000E
2500 W 2500H — — — — —
5000 W 5000H — — — — —

TABLE 1 STANDARD ELEMENTS

1.0 WATT MODEL 2.5 WATTS MODEL

25–30 MHz 025-1 25–30 MHz 025-2
30–35 MHz 030-1 30–40 MHz 030-2
35–40 MHz 035-1 40–50 MHz 040-2
40–50 MHz 040-1 50–60 MHz 050-2
50–60 MHz 050-1 60–80 MHz 060-2
60–80 MHz 060-1 80–95 MHz 080-2
80–95 MHz 080-1 95–150 MHz 095-2

95–125 MHz 095-1 150–250 MHz 150-2
110–160 MHz 110-1 200–300 MHz 200-2
150–250 MHz 150-1 250–450 MHz 250-2
200–300 MHz 200-1 400–850 MHz 400-2
275–450 MHz 275-1 800–1000 MHz 801-2
425–850 MHz 425-1

— —

800–1000 MHz 801-1 — —

TABLE 2 LOW-POWER ELEMENTS

Elements for wattmeters used with rigid lines are found
on pages 36

–

38.

Phone: [phone] • Fax: [phone]

26

PLUG-IN ELEMENTS

High Frequency, Low Frequency and Milliwatt

Protect and organize your
elements with a case.
See page 24.

POWER FREQUENCY BANDS (MHz)
RANGE 950-1260 1100-1800 1700-2200 2200-2300 2300-2400 2400-2500 2500-2600 2600-2700

1 W 1J 1K 1L 1M 431-17 431-20 431-23 431-120

2.5 W 2.5J 2.5K 2.5L 2.5M 431-110 431-107 431-108 431-117
5 W 5J 5K 5L 5M 432-15 432-28 432-2 432-12

10 W 10J 10K 10L 10M 432-125 432-141 432-102 432-104
25 W 25J 25K 25L 25M 433-19 433-20 433-35 433-36

50 W 50J 50K 50L 50M 433-37 433-38 433-163 433-164
100 W 100J — — — — — — —
250 W 250J — — — — — — —

TABLE 3 HIGH-FREQUENCY ELEMENTS. ENTIRE TABLE ±8% FS

POWER FREQUENCY BANDS (MHz)

RANGE 950-1260 1250-1500 1500-1700 1700-2200 2200-2300 2300-2400 2400-2500 2500-2600

100 mW 430-82 430-209 430-210 430-178 430-41 430-211 430-182 430-90
250 mW 430-83 430-236 430-237 430-1 430-238 430-239 430-240 430-241
500 mW 430-84 430-259 430-260 430-95 430-78 430-261 430-159 430-262

TABLE 3A HIGH-FREQUENCY MILLIWATT ELEMENTS

100 mW MODEL 250 mW MODEL 500 mW MODEL

45–50 MHz 430-266 45–50 MHz 430-267 45–54 MHz 430-242
50–60 MHz 430-191 50–60 MHz 430-212 54–60 MHz 430-243
60–66 MHz 430-192 60–66 MHz 430-213 60–66 MHz 430-244
66–72 MHz 430-193 66–72 MHz 430-214 66–72 MHz 430-245
72–76 MHz 430-2 72–76 MHz 430-22 72–76 MHz 430-33
76–82 MHz 430-194 76–82 MHz 430-215 76–88 MHz 430-246
82–88 MHz 430-195 82–88 MHz 430-216 88–108 MHz 430-247
88–97 MHz 430-170 88–108 MHz 430-217 105–120 MHz 430-26

97–108 MHz 430-171 105–120 MHz 430-20 120–136 MHz 430-248
108–136 MHz 430-57 116–126 MHz 430-48 136–150 MHz 430-249
135–175 MHz 430-86 125–136 MHz 430-218 150–170 MHz 430-53
170–190 MHz 430-62 130–150 MHz 430-13 170–190 MHz 430-250
190–210 MHz 430-63 150–180 MHz 430-15 190–216 MHz 430-251
210–216 MHz 430-176 170–190 MHz 430-64 216–240 MHz 430-252
216–230 MHz 430-196 190–210 MHz 430-65 240–290 MHz 430-27
230–240 MHz 430-197 210–220 MHz 430-184 290–340 MHz 430-253
240–250 MHz 430-198 216–230 MHz 430-219 340–360 MHz 430-157
250–260 MHz 430-199 230–240 MHz 430-220 350–400 MHz 430-254

260–270 MHz 430-200 240–250 MHz 430-221 400–450 MHz 430-255
270–280 MHz 430-201 250–260 MHz 430-222 450–500 MHz 430-256

280–290 MHz 430-202 260–270 MHz 430-223 500–600 MHz 430-257
290–300 MHz 430-203 270–280 MHz 430-224 600–800 MHz 430-258
300–320 MHz 430-204 280–290 MHz 430-225 800–1000 MHz 430-265
320–340 MHz 430-205 290–300 MHz 430-226 — —
340–360 MHz 430-164 300–320 MHz 430-227 — —
360–380 MHz 430-206 320-–340 MHz 430-228 — —

380–400 Mhz 430-207 340–360 MHz 430-229 — —
400–420 MHz 430-7 360–380 MHz 430-230 — —
420–450 MHz 430-208 375–400 MHz 430-231 — —
450–470 MHz 430-8 400–450 MHz 430-232 — —
470–500 MHz 430-179 450–470 MHz 430-61 — —
500–600 MHz 430-168 470–500 MHz 430-233 — —
600–800 MHz 430-169 500–600 MHz 430-234 — —

800–1000 MHz 430-263 600–800 MHz 430-235 — —

— — 800–1000 MHz 430-264 — —

FREQUENCY BANDS (MHz)

POWER RANGE 0.45 TO 2.5

1000 W 1000P
2500 W 2500P
5000 W 5000P

10,000 W 10000P

TABLE 4 LOW-FREQUENCY

ELEMENTS

TABLE 6 MILLIWATT ELEMENTS

Elements for wattmeters used with rigid lines are found on pages 36–38.

E-mail: [email protected] • Internet: www.bird-electronic.com

27

Table 5 Notes:

Elements 500–10,000 watts, 950–1260 MHz,
are rated at 100 watts avg.
Elements 2500 watts and higher, 25

–1000 MHz,

are rated at 1000 watts avg.
Elements 2500A, 2500B, 2500C, 5000A, and
10000H are capable of reading peak and
average power.

PLUG-IN ELEMENTS

Pulse Power, 4410 Series

FREQUENCY (MHz) POWER MODEL

.45–2.5 25 kW 25KP7

2–30 10 kW 10KH7
25–60 2500 W 2500A7
25–60 5000 W 5000A7

50–125 2500 W 2500B7

50–125 5000 W 5000B7
100–250 2500 W 2500C7
200–500 2500 W 2500D7

400–1000 2500 W 2500 E7
1100–1800 50 W 50K7
1100–1800 100 W 100K7
1700–2200 50 W 50L7
1700–2200 100 W 100L7
2200–2300 50 W 50M7
2200–2300 100 W 100M7

TABLE 8 PLUG-IN ELEMENTS FOR MODEL 4305A*

*4305A may also use elements from Table 15⁄8AA on page 37.

FULL-SCALE POWER AND FREQUENCY RANGES

0–10, 30, 100, 300 MILLIWATTS

1, 3, 10 WATTS

MHz MODEL

30–50 4410-20
50–88 4410-21

88–108 4410-27
100–152 4410-22
150–250 4410-23
225–400 4410-24
400–800 4410-25
800–900 4410-26

900–1000 4410-28

TABLE 9 4410 ELEMENTS

FULL-SCALE POWER AND FREQUENCY RANGES

0–1, 3, 10, 30, 100, 300, 1000 WATTS

MHz MODEL

2–30 4410-3

25–80 4410-5

50–200 4410-6

144–520 4410-7

200–1000 4410-8

TABLE 11 4410 ELEMENTS

FULL-SCALE POWER AND FREQUENCY RANGES

0–10, 30, 100, 300, 1000, 3000, 10,000 WATTS

MHz MODEL

0.2–0.535 4410-1

0.45–2.5 4410-2
2–30 4410-4

TABLE 12 4410 ELEMENTS

FULL-SCALE POWER AND FREQUENCY RANGES

0–1, 3, 10, 30, 100, 300 MILLIWATTS AND 1 WATT

MHz MODEL ACCURACY

864–868 4410-38

±

10% of reading accuracy

on 100 mW, 300 mW and

1 W, ±5% on all other scales

917–970 4410-29

±

5% 10 mW to 1 W only

TABLE 9A 4410 ELEMENTS

FULL-SCALE POWER AND FREQUENCY RANGES

0–100, 300 MILLIWATTS

1, 3, 10, 30, 100 WATTS

MHz MODEL

25–80 4410-10

50–125 4410-11
100–250 4410-12
200–500 4410-13

400–1000 4410-14
1000–1800 4410-15*
1800–2300 4410-16*

TABLE 10 4410 ELEMENTS

*Accuracy is ±8% of reading

Elements for wattmeters used with rigid lines are found on pages 36–38.

POWER FREQUENCY BANDS (MHz)
RANGE 2-30 25-60 50-125 100-250 200-500 400-1000 950-1260

500 W — — — — — — 500J
1000 W — — — — — — 1000J
2500 W — 2500A 2500B 2500C 2500D 2500E 2500J
5000 W — 5000A 5000B 5000C 5000D 5000E 5000J

10000 W 10000H 10000A 10000B 10000C 10000D 10000E 10000J

TABLE 5 PULSE-POWER ELEMENTS

ENTIRE TABLE ±8% OF FULL SCALE

Phone: [phone] • Fax: [phone]

28

The 4274 Series sampler elements are nondirectional couplers that replace the stan­dard element in your Bird wattmeter for such applications as RF signal observation,
spectrum analysis or frequency counting and control where main line power does not
exceed 500 W. The Model 4274-025 is a wide-range device that provides an unrectified
signal at about

–

50 dB ±2 dB from 25–1000 MHz tapering to –66 dB at 2 MHz. The

Model 4274-050 delivers a variable unrectified signal from

–

35 to –48 dB (±1 dB) from

100–400 MHz.

The directional coupler plug-in elements in Table 14 below are used for signal leveling,
frequency control, wave-shape monitoring, local oscillator or marker-signal injection,
etc. They extract a calibrated amount of power from the main line signal flowing in
the direction of the arrow. This attenuated signal is NOT rectified (as in the standard
measuring elements), but is brought out through a female BNC connector on top of the
element. Coupler elements fit the standard sockets, but there are no DC output tabs
on the element body since no DC is produced. An added convenience is rotating the
element between 0˚ and 180˚ varies the amount of coupling like a variable attenuator.
Minimum attenuation of the main line signal is the nominal coupling±1 dB shown
for each unit within the stated frequency band.

Variable 4274-050
(lower left) and wide-range
4274-025 (upper right)
sampler elements shown
with a standard element.

FREQUENCY NOMINAL MAX. MAIN

BAND (MHz) COUPLING LINE POWER*

MODEL

50–100 –40 dB 1 kW 400-50

75–150 –40 dB 1 kW 400-75
125–250 –40 dB 1 kW 400-125
225–450 –40 dB 1 kW 400-225
400–800 –40 dB 1 kW 400-400

750–1250 –40 dB 1 kW 400-750

TABLE 14 DIRECTIONAL COUPLER ELEMENTS FOR QC-TYPE OR 7⁄8" EIA LINE

*The power rating of the directional couplers cannot exceed the peak and average power ratings of the

transmission line.

FREQUENCY NOMINAL MAX. MAIN

BAND (MHz) COUPLING LINE POWER*

MODEL

25–1000 –50 dB ± 2 dB 500 W 4274-025

(–66 dB @ 2 MHz)

100–400 –35 to –48 dB (± 1 dB) 500 W 4274-050

Adjustable

NONDIRECTIONAL SAMPLER ELEMENTS FOR QC-TYPE OR 7⁄8" EIA LINE

FREQUENCY BANDS (MHz)

POWER

2- 25- 50- 100- 200- 400- 950- 1100- 1700- 2200-

RANGE

30 60 125 250 500 1000 1260 1800 2200 2300

1W — APM-1A APM-1B APM-1C APM-1D APM-1E APM-1J APM-1K APM-1L APM-1M

2.5W — APM-2.5A APM-2.5B APM-2.5C APM-2.5D APM-2.5E APM-2.5J APM-2.5K APM-2.5L APM-2.5M
5 W APM-5H APM-5A APM-5B APM-5C APM-5D APM-5E APM-5J APM-5K APM-5L APM-5M

10 W APM-10H APM-10A APM-10B APM-10C APM-10D APM-10E APM-10J APM-10K APM-10L APM-10M
25 W APM-25H APM-25A APM-25B APM-25C APM-25D APM-25E APM-25J APM-25K APM-25L APM-25M

50 W APM-50H APM-50A APM-50B APM-50C APM-50D APM-50E APM-50J APM-50K APM-50L —
100 W APM-100H APM-100A APM-100B APM-100C APM-100D APM-100E APM-100J — — —
250 W APM-250H APM-250A APM-250B APM-250C APM-250D APM-250E APM-250J — — —
500 W APM-500H APM-500A APM-500B APM-500C APM-500D APM-500E — — — —

1000 W APM-1000H APM-1000A APM-1000B APM-1000C APM-1000D APM-1000E — — — —

APM ELEMENTS FOR APM-16

PLUG-IN ELEMENTS

Sampler, Coupler, and APM

E-mail: [email protected] • Internet: www.bird-electronic.com

29

RF POWER METER

SELECTION GUIDE

Power Meters For Rigid Line Use

Bird High-Power Wattmeters measure forward and reflected power in 15⁄8" through 61⁄8" rigid line systems up to
250kW. The 4600A, 4700A, 4800A, and 4900A Series are prepackaged, semiportable systems consisting of a line section and
meter with attached 10-foot cabling. Selected packages include a dual-element line section and switchable meter unit, per­mitting convenient forward or reflected power readings at the flip of a switch. For maximum flexibility, you can also assem­ble a custom system from a 6810-Series portable meter or 3127-Series panel-mount meter (page 35) and an appropriate line
section (page 34).

Wattmeter packages, as well as the 3127 and 6810 Series meters, contain 100 µA movements designed for use with Bird
Plug-in Elements from the ”A“, ”B“, or ”C“ tables (pages 37–38). Order elements according to your line section size,
the required power and frequency, and meter scales.

The WATTCHER

®

Models on pages 32–33 are designed to protect your equipment from damage caused by high VSWR or
abnormal load conditions. These instruments provide visual and audible alarms as well as switching capabilities to shut
down a transmitter, turn on deicing equipment, etc.

The table below will help direct you to a Bird 1

5

⁄8", 31⁄8", 41⁄16", or 61⁄8" High-Power Wattmeter package to fit
your needs. Turn to the referenced page for full product descriptions and specifications. You can also contact Bird or any
authorized distributor for further assistance.

If your applications include

7

⁄8" coaxial systems, please see the wattmeter selection guide on page 9.

This catalog contains RF Terminations that will terminate up to 80 kW. See pages 42–53.

HIGH-POWER
WATTMETERS

Pages 30–31

LINE SECTIONS Page 34

PANEL-MOUNT
METERS

Page 35

WATTCHER®RF
MONITORING
SYSTEMS

Pages 32–33

ELEMENTS

Pages 36–38

LINE SIZE POWER

FREQ. FULL-SCALE DISPLAY SEE

(MHz) ACCURACY TYPE PAGE

15⁄8" EIA 100W – 25kW 2–1000

±

5% FS Analog 30

3

1

⁄8" EIA 100W – 100kW 2–1000

±

5% FS Analog 30

4

1

⁄16" 1500W – 80kW 50–1000

±

5% FS Analog 31

6

1

⁄8" EIA 1000W – 250kW 2–1000

±

5% FS Analog 31

HIGH-POWER WATTMETER PACKAGES

Rigid LineRigid Line

PrProductsoducts

Phone: [phone] • Fax: [phone]

30

MODEL 4712A shown.

All models on pages 30–31
include meter and line section.

THRULINE

®

RF DIRECTIONAL WATTMETERS

15⁄8" and 31⁄8" WATTMETER PACKAGES

15⁄8" WATTMETER PACKAGES - 50 OHMS NOMINAL

Insertion VSWR: 1.05 max.
Accuracy:

±

5% of full scale

Cable/Connectors: Permanently attached

10 foot cable(s) with DC connector(s)

Finish:

Meter: Gray powder coat
Line Section: Bright silver plated

Nominal Size (Meter): 59⁄16" W ×61⁄2" H

×

33⁄8" D, (141 mm ×165 mm ×85 mm)

Weight (Meter): 3 lbs. (1.4 kg)

Insertion VSWR: 1.05 max.
Accuracy:

±

5% of full scale

Cable/Connectors: Permanently attached

10 foot cable(s) with DC connector(s)

Finish:

Meter: Gray powder coat
Line Section: Bright silver plated

Nominal Size (Meter): 59⁄16" W ×61⁄2" H

×

33⁄8" D, (141 mm ×165 mm ×85 mm)

Weight (Meter): 3 lbs. (1.4 kg)

31⁄8" WATTMETER PACKAGES - 50 OHMS NOMINAL

MODEL 4610-200A

MODEL FREQ. RANGE POWER NUMBER SCALE ELEMENT LINE SECTION LINE SECTION
NO. (MHz) RANGE (kW)

FLG/UNFLG

SOCKETS DIVISIONS TABLE LENGTH WEIGHT

4712A 2–1000 0.1–25 EIA Flg. Single 5/10/25 15⁄8A 63⁄4" (171 mm) 3 lbs. (1.4 kg)
4715-200A 2–1000 0.1–25 EIA Flg. Double 5/10/25 1

5

⁄8A 63⁄4" (171 mm) 31⁄4 lbs. (1.48 kg)

4720A 2–1000 0.1–25 Unflg. (Rec. 0.438") Single 5/10/25 1

5

⁄8A 63⁄8" (162 mm) 11⁄4 lbs. (0.6 kg)

4723-200A 2–1000 0.1–25 Unflg. (Rec. 0.438") Double 5/10/25 1

5

⁄8A 63⁄8" (162 mm) 11⁄2 lbs.(0.7 kg)

4712-037A 2–1000 0.3–15 EIA Flg. Single 15/30/60 1

5

⁄8A 63⁄4" (171 mm) 3 lbs. (1.4 kg)

4715-300A 2–1000 0.3–15 EIA Flg. Double 15/30/60 1

5

⁄8A 63⁄4" (171 mm) 31⁄4 lbs. (1.48 kg)

MODEL FREQ. RANGE POWER NUMBER SCALE ELEMENT LINE SECTION LINE SECTION
NO. (MHz) RANGE (kW)

FLG/UNFLG

SOCKETS DIVISIONS TABLE LENGTH WEIGHT

460A 2–1000 0.1–100 EIA Flg. Single 5/10/25 31⁄8A 71⁄32" (179 mm) 7 lbs. (3.2 kg)
4610-200A 2–1000 0.1–100 EIA Flg. Double 5/10/25 3

1

⁄8A 71⁄32" (179 mm) 71⁄4 lbs. (3.3 kg)

4805A 2–1000 0.1–100 Unflg. (Flush) Single 5/10/25 3

1

⁄8A 61⁄2" (165 mm) 4 lbs. (1.82 kg)

4802-200A 2–1000 0.1–100 Unflg. (Flush) Double 5/10/25 3

1

⁄8A 61⁄2" (165 mm) 41⁄4 lbs. (1.94 kg)

4600-037A 50–1000 0.6–30 EIA Flg. Single 15/30/60 3

1

⁄8B 71⁄32" (179 mm) 7 lbs. (3.2 kg)

4610-300A 50–1000 0.6–30 EIA Flg. Double 15/30/60 3

1

⁄8B 71⁄32" (179 mm) 71⁄4 lbs. (3.3 kg)

4805-037A 50–1000 0.6–30 Unflg. (Flush) Single 15/30/60 3

1

⁄8B 61⁄2" (165 mm) 4 lbs. (1.82 kg)

4802-300A 50–1000 0.6–30 Unflg. (Flush) Double 15/30/60 3

1

⁄8B 61⁄2" (165 mm) 41⁄4 lbs. (1.94 kg)

Elements for rigid line wattmeter packages are found on pages 36–38.

Rigid LineRigid Line

PrProductsoducts

E-mail: [email protected] • Internet: www.bird-electronic.com

31

THRULINE

®

RF DIRECTIONAL WATTMETERS

41⁄16" and 61⁄8" WATTMETER PACKAGES

41⁄16" WATTMETER PACKAGES - 50 OHMS NOMINAL

MODEL 4902A

MODEL 4642-200A

Insertion VSWR: 1.05 max.
Accuracy:

±

5% of full scale

Cable/Connectors: Permanently attached

10 foot cable(s) with DC connector(s)

Finish:

Meter: Gray powder coat
Line Section: Bright silver plated

Nominal Size (Meter): 59⁄16" W × 61⁄2" H ×

33⁄8" D, (141 mm × 165 mm × 85 mm)

Weight (Meter): 3 lbs. (1.4 kg)

61⁄8" WATTMETER PACKAGES - 50 OHMS NOMINAL

Insertion VSWR: 1.05 max.
Accuracy:

±

5% of full scale

Cable/Connectors: Permanently attached

10 foot cable(s) with DC connector(s)

Finish:

Meter: Gray powder coat
Line Section: Bright silver plated

Nominal Size (Meter): 59⁄16" W × 61⁄2" H ×

33⁄8" D, (141 mm × 165 mm × 85 mm)

Weight (Meter): 3 lbs. (1.4 kg)

MODEL FREQ. RANGE POWER NUMBER SCALE ELEMENT LINE SECTION LINE SECTION
NO. (MHz) RANGE (kW)

FLG/UNFLG

SOCKETS DIVISIONS TABLE LENGTH WEIGHT

4641A 50–1000 2.5–50 EIA Flg. Single 5/10/25 41⁄16A 83⁄8" (213 mm) 85⁄8 lbs. (3.9 kg)
4642-200A 50–1000 2.5–50 EIA Flg. Double 5/10/25 4

1

⁄16A 83⁄8" (213 mm) 87⁄8 lbs. (4.0 kg)

4843A 50–1000 2.5–50 Unflg. (Rec. 0.531") Single 5/10/25 4

1

⁄16A 71⁄2" (191 mm) 25⁄8 lbs. (1.2 kg)

4844-200A 50–1000 2.5–50 Unflg. (Rec. 0.531") Double 5/10/25 4

1

⁄16A 71⁄2" (191 mm) 27⁄8 lbs. (1.3 kg)

4641-037A 50–1000 3–60 EIA Flg. Single 15/30/60 4

1

⁄16B 83⁄8" (213 mm) 85⁄8 lbs. (3.9 kg)

4642-300A 50–1000 3–60 EIA Flg. Double 15/30/60 4

1

⁄16B 83⁄8" (213 mm) 87⁄8 lbs. (4.0 kg)

4843-037A 50–1000 3–60 Unflg. (Rec. 0.531") Single 15/30/60 4

1

⁄16B 71⁄2" (191 mm) 25⁄8 lbs. (1.2 kg)

4844-300A 50–1000 3–60 Unflg. (Rec. 0.531") Double 15/30/60 4

1

⁄16B 71⁄2" (191 mm) 27⁄8 lbs. (1.3 kg)

4641-080A 50–1000 8–80 EIA Flg. Single 8/80 4

1

⁄16C 83⁄8" (213 mm) 85⁄8 lbs. (3.9 kg)

4843-080A 50–1000 8–80 Unflg. (Rec. 0.531") Single 8/80 4

1

⁄16C 71⁄2" (191 mm) 25⁄8 lbs. (1.2 kg)

MODEL FREQ. RANGE POWER NUMBER SCALE ELEMENT LINE SECTION LINE SECTION
NO. (MHz) RANGE (kW)

FLG/UNFLG

SOCKETS DIVISIONS TABLE LENGTH WEIGHT

4902A 2–1000 1–250 EIA Flg. Single 5/10/25 61⁄8A 107⁄32" (260 mm) 163⁄4 lbs. (7.6 kg)
4905-200A 2–1000 1–250 EIA Flg. Double 5/10/25 6

1

⁄8A 107⁄32" (260 mm) 17 lbs. (7.7 kg)

4907A 2–1000 1–250 Unflg. (Rec. 0.968") Single 5/10/25 6

1

⁄8A 95⁄8" (245 mm) 121⁄2 lbs. (5.7 kg)

4909-200A 2–1000 1–250 Unflg. (Rec. 0.968") Double 5/10/25 6

1

⁄8A 95⁄8" (245 mm) 123⁄4 lbs. (5.8kg)

4902-037A 50–1000 3–60 EIA Flg. Single 15/30/60 6

1

⁄8B 107⁄32" (260 mm) 163⁄4 lbs. (7.6 kg)

4905-300A 50–1000 3–60 EIA Flg. Double 15/30/60 6

1

⁄8B 107⁄32" (260 mm) 17 lbs. (7.7 kg)

4902-080A 50–1000 8–80 EIA Flg. Single 8/80 6

1

⁄8C 107⁄32" (260 mm) 163⁄4 lbs. (7.6 kg)

4907-080A 50–1000 8–80 Unflg. (Rec. 0.968") Single 8/80 6

1

⁄8C 95⁄8" (245 mm) 121⁄2 lbs. (5.7 kg)

Elements for rigid line wattmeter packages are found on pages 36–38.

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32

THRULINE

®

RF DIRECTIONAL WATTMETERS

High-Speed WATTCHER®RF Monitoring Systems

Bird’s high-speed WATTCHER®Systems can protect your transmitting equipment
from damage caused by high-standing waves and warn you about low transmit
power. Our 3171A Series instruments offer ultra-fast response time and a forward
power drop-off alarm in addition to the reflected power monitor/alarm capabilities
of the WATTCHER

®

models on the next page. Two models are available: the Model

3171A (100 W – 250 kW) and Model 3171A-020 (300 W – 60 kW).
Both solid state models can warn a remote operator of: 1) low power due to

detuning, component deterioration, or AC line difficulties; and 2) high reflected
power due to factors such as antenna icing, transmission line problems, physical
accidents and lightning strikes. The 3171A Series:

■

Displays a continuous, simultaneous view of forward and reflected
power which can be remoted.

■

Provides fast fault response time – 250 times faster than other monitors –
for forward and reflected power monitoring.

■

Alerts you to forward power drop-off below a set level
(e.g. to conform to appropriate FCC requirements).

■

Activates audible/visual alarms when reflected power increases.

■

Allows remote reset in the event of a false alarm or momentary
disturbance which leaves transmission unimpaired.

■

Operates from AC or DC.

HIGH-SPEED, FWD/RFL ALARM WATTCHER

®

MODEL 3171A

MODEL 3171A

Features 25 µs response,
5/10/25 kW meter scales, for­ward and reflected power
alarms.

Power Range: 100 W to 250 kW using

Bird Plug-in Elements*

Frequency Range: 2 MHz to 1 GHz
Accuracy:

±

5% of full scale

Meter Scales:

3171A: FWD and RFL 5/10/25 kW
3171A-020: FWD and RFL 15/30/60 kW

Alarms: Front-panel buzzer, ”Active“

and ”Trip“ LEDs for forward/reflected

Response Time: 25 µs max.
Activate Forward: 73 µs

to 50 ms nominal (adjustable)
Monitor Delay

Front Panel Controls: Reset push-button,

adjust FWD/RFL alarm levels screw.

Rear Panel Features: DC FWD/RFL signal

inputs, main, and remote meter drive
outputs, external 12–16 Vdc supply input,
alarm in/out, reset in/out, AC line voltage
selector, fuse, IEC 320 AC receptacle.

Inputs/Outputs: TTL compatible +5 V logic.

Outputs for remote meter

Cable: Includes two 25 ft. DC cables
AC Power: 115/230 V, 50/60 Hz @ 56 mA max.
DC Power: 12.7 to 16.0 V @ 400 mA max.
Finish: Gray powder coat
Nominal Size: 19" W × 57⁄32" H × 921⁄64" D,

(483 mm

× 133 mm × 237 mm)

Weight: 51⁄2lbs. (2.5 kg)
Required Products:

Line Section: 15⁄8", 31⁄8", 41⁄16",
or 6

1

⁄8" from page 34
Elements (pages 37–38):
3171A: Two from Tables 1

5

⁄8AA,

3

1

⁄8AA, 41⁄16AA, or 61⁄8AA.

3171A-020: Two from Tables 1

5

⁄8BB,

3

1

⁄8BB, 41⁄16BB, or 61⁄8BB.
Cable: If length other than 25 ft. is
desired, order two BNC (M) cables
from page 61.

* Quoted accuracy only when used with other Bird products.

WATTCHERS for 0.1 – 10,000 watt cable systems are found on pages 19–20.

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33

THRULINE

®

RF DIRECTIONAL WATTMETERS

WATTCHER®RF Monitoring Systems

Bird’s WATTCHER®RF monitoring and alarm systems can automatically activate
a variety of safety and equipment protection measures when they detect an
abnormal antenna system load condition. Besides providing simultaneous displays
of forward and reflected power, these instruments signal audible and visual alarms
if reflected power exceeds the limit you set for more than 50 ms. A DPDT interlock
relay can also be wired to shutdown the transmitter, activate deicing equipment,
signal a remote alarm and initiate other measures to protect your equipment from
high VSWR.

The Model 3126A monitors power from 300 W to 60 kW. The Model 3127A covers
systems that output 100 W to 250 kW of RF power. Both models have been refined
over the previous 3126 and 3127 to provide increased performance and user
requested features.

■

Mirrored scale meters aid reading and help eliminate parallax.

■

Separate push-button reset control and LED indicators added.

■

Improved circuitry reduces the chance of false alarms.

■

Can be wired for automatic, unattended reset when alarm

condition clears.

■

Rear connection panel speeds installation or removal.

■

Tested and found EMC compliant.

100 W – 250 kW WATTCHER

®

MODELS 3126A, 3127A

MODEL 3127A

Features a reflected power
alarm for 100 W to 250 kW
RF systems.

Power Range:

3126A: 300 W to 60 kW using Bird
Plug-in Elements*
3127A: 100 W to 250 kW using Bird
Plug-in Elements*

Frequency Range: 2 MHz to 1 GHz
Accuracy:

±

5% of full scale

Meter Scale FWD:

3126A: 15/30/60 kW
3127A: 5/10/25 kW

Meter Scale RFL:

3126A: 1.5/3/6 kW
3127A: 1/2.5/5 kW

Meter Sensitivity: 100 µA/3000Ω
Alarms: Front panel buzzer and red LED
Front Panel Controls: Reset push-button,

reflected power limit display button,
adjust alarm level recessed screw

Rear Panel Features: FWD/RFL DC signal

inputs (BNC), DC power/remote reset
connector, DPDT interlock relay connector,
fail-safe/nonfail-safe selector, alarm
buzzer disable, AC line voltage selector,
safety fuses and IEC 320 AC receptacle.

Cable: Includes two 25 ft. DC cables
AC Power: 115/230 V, 50/60 Hz, @ 0.125 A
DC Power: 9 to 16 V @ 1A
Finish: Gray powder coat
Nominal Size: 19" W × 57⁄32" H × 33⁄4" D

(483 mm

× 133 mm × 95 mm)

Weight: 5 lbs. (2.28 kg)
Required Products:

Line Section: 15⁄8", 31⁄8", 41⁄16",
6

1

⁄8" from page 34
Elements (pages 37–38):
3126A: Two from Tables 1

5

⁄8 B, 31⁄8 B,

4

1

⁄16B, or 61⁄8B
3127A: Two from Tables 1

5

⁄8A, 31⁄8A,

4

1

⁄16A, or 61⁄8A
Cable: If length other than 25 ft. is
desired, order two BNC (M) cables
from page 61.

* Quoted accuracy only when used with other Bird products.

WATTCHERS for 0.1 – 10,000 watt cable systems are found on pages 19–20.

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34

THRULINE

®

WATTMETER COMPONENTS

Rigid Line Sections

Bird offers 15⁄8", 31⁄8", 41⁄16", and 61⁄8" RF air line sections which, with the appropriate meter and Plug-in Elements, form a
complete power measurement system. These precision sections insert in the transmission line, between the
transmitter and antenna or load, and are available with flanged, unflanged/flush, or unflanged/recessed connections.

Line sections contain one element socket, or dual opposing sockets. Dual socket models permit forward and reflected
readings using just one line section and a switchable meter or dual-meter panel.

Plug-in Elements (pages 36–38) must be ordered according to the desired frequency and power ranges, line section size,
and the scales of the meter selected for use with the line section:

■

5/10/25 Scales: Element Tables 15⁄8 A, 31⁄8 A, 41⁄

16

A, 61⁄8 A

■

15/30/60 Scales: Element Tables 15⁄8 B, 31⁄8 B, 41⁄

16

B, 61⁄8 B

■

8/80 Scales: Element Tables 15⁄8 C, 31⁄8 C, 41⁄

16

C, 61⁄8 C

15⁄8" RIGID LINE SECTIONS

MODEL

LINE CONNECTOR ELEMENT LENGTH WEIGHT
SIZE TYPE SOCKETS (INCHES) (LBS.)

4712-000 15⁄8" EIA Flg. 1 6.75 3
4715-000 1

5

⁄8" EIA Flg. 2 6.75 3.25

4720-000 1

5

⁄8" UnFlg. (Rec. 0.438") 1 6.38 1.25

4723-000 1

5

⁄8" UnFlg. (Rec. 0.438") 2 6.38 1.5

31⁄8" RIGID LINE SECTIONS

MODEL

LINE CONNECTOR ELEMENT LENGTH WEIGHT
SIZE TYPE SOCKETS (INCHES) (LBS.)

4600-000 31⁄8 EIA Flg. 1 7.03 7
4610-000 3

1

⁄8" EIA Flg. 2 7.03 7.25

4801-000 3

1

⁄8" UnFlg. (Rec. 0.688") 1 6.5 4

4801-100 3

1

⁄8" UnFlg. (Rec. 0.688") 2 6.5 4.25

4802-000 3

1

⁄8" UnFlg. (Flush) 2 6.5 4.25

4805-000 3

1

⁄8" UnFlg. (Flush) 1 6.5 4

41⁄16" RIGID LINE SECTIONS

MODEL

LINE CONNECTOR ELEMENT LENGTH WEIGHT
SIZE TYPE SOCKETS (INCHES) (LBS.)

4641-000 41⁄16" EIA Flg. 1 8.38 8.63
4642-000 4

1

⁄16" EIA Flg. 2 8.38 8.88

4843-000 4

1

⁄16" UnFlg. (Rec. 0.531") 1 7.5 2.63

4844-000 4

1

⁄16" UnFlg. (Rec. 0.531") 2 7.5 2.88

61⁄8" RIGID LINE SECTIONS

MODEL

LINE CONNECTOR ELEMENT LENGTH WEIGHT
SIZE TYPE SOCKETS (INCHES) (LBS.)

4902-000 61⁄8" EIA Flg. 1 10.22 16.75
4905-000 6

1

⁄8" EIA Flg. 2 10.22 17

4907-000 6

1

⁄8" UnFlg. (Rec. 0.968") 1 9.63 12.5

4909-000 6

1

⁄8" UnFlg. (Rec. 0.968") 2 9.63 12.75

MODEL 4715-000

MODEL 4805-000

MODEL 4843-000

MODEL 4902-000

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35

THRULINE

®

WATTMETER COMPONENTS

Meters for Rigid Line Use

The 100 µA meters presented on this page form a complete power measurement
system when combined with the appropriate 1

5

⁄8", 31⁄8", 41⁄16", or 61⁄8" rigid line sec-

tion (page 34) and Plug-in Elements (pages 36–38).
The 3127 Series meters are available in six 19" panel-mount configurations with

dual meters, single meter, or single meter with forward/reflected power switch.
Scale choices include 15/30/60 kW and 5/10/25 kW.

The 6810 Series housed meters are offered with a choice of meter scales, with
or without a forward/reflected power switch. Scale choices include 15/30/60 kW,
5/10/25 kW, and 8/80 kW. These are the same meters included in the complete
high-power wattmeter packages on pages 30–31.

Plug-in Elements must be ordered according to the desired frequency and power
ranges, the meter scales, and size of the line section selected for use with the meter:

■

5/10/25 Scales: Element Tables 15⁄8 A, 31⁄8 A, 41⁄

16

A, 61⁄8 A

■

15/30/60 Scales: Element Tables 15⁄8 B, 31⁄8 B, 41⁄

16

B, 61⁄8 B

■

8/80 Scales: Element Tables 15⁄8 C, 31⁄8 C, 41⁄

16

C, 61⁄8 C

(6810 Series, only)

DIMENSIONS AND WEIGHT:

■

3127 Series Panel-Mount Meters: 19" W × 57⁄32" H × 43⁄8" D,
(483 mm

× 133 mm ×112 mm). Weight: 3 lbs. (1.4 kg)

■

6810 Series Housed Meters: 59⁄16" W × 61⁄2" H × 33⁄8" D,
(142 mm

× 166 mm ×86 mm). Weight: 3 lbs. (1.4 kg)

METERS 3127, 6810 SERIES

MODEL TYPE SCALES DC CABLE (FT.) USES LINE SECTION

3127-035 Single 41⁄2" rectangular on panel 5/10/25 kW 25 Single socket from page 34
3127-040 Dual 4

1

⁄2" rectangular on panel 5/10/25 kW 25 Double socket from page 34

3127-055 Single 4

1

⁄2" rectangular 5/10/25 kW 25 Double socket from page 34

on panel w/fwd. and rfl. switch

3127-070 Single 4

1

⁄2" rectangular on panel 15/30/60 kW 25 Single socket from page 34

3127-075 Dual 4

1

⁄2" rectangular on panel 15/30/60 kW 25 Double socket from page 34

3127-080 Single 4

1

⁄2" rectangular 15/30/60 kW 25 Double socket from page 34

on panel w/fwd. and rfl. switch

6810-220 4

1

⁄2" rectangular in 5/10/25 kW 10 Double socket from page 34

housing w/fwd. and rfl. switch

6810-230 4

1

⁄2" rectangular in 15/30/60 kW 10 Double socket from page 34

housing w/fwd. and rfl. switch

6810-250 4

1

⁄2" rectangular in 8/80 kW 10 Double socket from page 34

housing w/fwd. and rfl. switch

6810-265 4

1

⁄2" rectangular in housing 8/80 kW 10 Single socket from page 34

6810-307 4

1

⁄2" rectangular in housing 15/30/60 kW 10 Single socket from page 34

6810-309-7 4

1

⁄2" rectangular in housing 5/10/25 kW 10 Single socket from page 34

Top to Bottom:

MODEL 3127-070,
MODEL 3127-055,
MODEL 3127-040

MODEL 6810-220

MODEL 6810-309-7

Elements for rigid line wattmeters are found on pages 36–38

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36

PLUG-IN ELEMENTS

Selection Guides – Standard and Low Power

WATTMETER* SELECT ELEMENT

MODEL FROM TABLE(S)

3126A 15⁄8 B, 31⁄8 B, 41⁄16 B, 61⁄8 B
3127A 1

5

⁄8 A, 31⁄8 A, 61⁄8 A

3127-035 1

5

⁄8 A, 31⁄8 A, 41⁄16A, 61⁄8 A

3127-040 1

5

⁄8 A, 31⁄8 A, 41⁄16A, 61⁄8 A

3127-055 1

5

⁄8 A, 31⁄8 A, 41⁄16A, 61⁄8 A

3127-070 1

5

⁄8 B, 31⁄8 B, 41⁄16 B, 61⁄8 B

3127-075 1

5

⁄8 B, 31⁄8 B, 41⁄16 B, 61⁄8 B

3127-080 1

5

⁄8 B, 31⁄8 B, 41⁄16 B, 61⁄8 B

3171A 1

5

⁄8 AA, 31⁄8 AA, 41⁄16 A A, 61⁄8 AA

3171-020 1

5

⁄8 BB, 31⁄8 BB, 41⁄16 BB, 61⁄8 BB

4305A 8**, 1

5

⁄8AA

4382, 84, 86, 88 1

5

⁄8 A, 31⁄8 A, 61⁄8 A

460A 3

1

⁄8 A

4600-037A 3

1

⁄8 B

4610-200A 3

1

⁄8 A

4610-300A 3

1

⁄8 B

4641A 4

1

⁄16 A

4641-037A 4

1

⁄16 B

4641-080A 4

1

⁄16 C

4642-200A 4

1

⁄16 A

4642-300A 4

1

⁄16 B

4643-080A 4

1

⁄16 C

4712A 1

5

⁄8 A

4712-037A 1

5

⁄8 B

4715-200A 1

5

⁄8 A

4715-300A 1

5

⁄8 B

4720A 1

5

⁄8 A

4723-200A 1

5

⁄8 A

4802-200A 3

1

⁄8 A

4802-300A 3

1

⁄8 B

4805A 3

1

⁄8 A

4805-037A 3

1

⁄8 B

4843A 4

1

⁄16 A

4843-037A 4

1

⁄16B

4844-200A 4

1

⁄16 A

4844-300A 4

1

⁄16 B

4902A 6

1

⁄8 A

4902-037A 6

1

⁄8 B

4902-080A 6

1

⁄8 C

4905-200A 6

1

⁄8 A

4905-300A 6

1

⁄8 B

4907A 6

1

⁄8 A

4907-080A 6

1

⁄8 C

4909-200A 6

1

⁄8 A

* In addition to the elements listed, these meters can use Tables 15, 16 and17 coupler elements for RF sampling.

The instrument meter does not read when these elements are installed. Typically, Table 15–17 elements are
used with line sections, but also provide RF sampling when used with metered instruments where the meter
simply serves as a line section. Directional coupler power ratings cannot exceed the peak and average
rating of the transmission line.

** See page 27 for Table 8

ELEMENT TABLE VS. METER SENSITIVITY AND SCALES

ELEMENT TABLE METER CURRENT METER SCALE

15⁄8A, 31⁄8A, 41⁄16A, 61⁄8A 100 µA 5/10/25

1

5

⁄8AA, 31⁄8AA, 41⁄16AA, 61⁄8AA 30 µA 5/10/25

1

5

⁄8B, 31⁄8B, 41⁄16B, 61⁄8B 100 µA 15/30/60

1

5

⁄8BB, 31⁄8BB, 41⁄16BB, 61⁄8BB 30 µA 15/30/60

1

5

⁄8C, 31⁄8C, 41⁄16C, 61⁄8C 100 µA 80

15, 16, 17* — —

The Bird Plug-In Elements on these pages are for wattmeters
used with rigid line sections (See pages 25–28 for 50-ohm cable
wattmeter elements). Use the Selection Guide on this page or
call us for assistance to find the right element.

Except for directional coupler elements, all 1

5

⁄8" to

6

1

⁄8" rigid line elements must be calibrated with

the wattmeter where they will be used to ensure

stated accuracy. We highly recommend ordering
elements in identical pairs, recording the meter

reading of both and storing one in a safe place.

This will help you avoid the inconvenience of

returning an entire wattmeter for recalibration

(e.g., if an element is dropped.)

Always specify your wattmeter or line section number when ordering elements.

ELEMENT SELECTION GUIDE

FREQUENCY NOMINAL MAX. MAIN

BAND (MHz) COUPLING LINE POWER

MODEL

50–100 –50 dB 10 kW 501-50

75–150 –50 dB 10 kW 501-75
125–250 –50 dB 10 kW 501-125
225–450 –50 dB 10 kW 501-225
400–800 –50 dB 5 kW 501-400

750–1250 –50 dB 5 kW 501-750

TABLE 15 DIRECTIONAL COUPLER ELEMENTS FOR 15⁄8" EIA LINES

FREQUENCY NOMINAL MAX. MAIN

BAND (MHz) COUPLING LINE POWER

MODEL

25–40 –55 dB 25 kW 553-25
50–100 –55 dB 25 kW 553-50
75–150 –55 dB 25 kW 553-75

125–250 –55 dB 25 kW 553-125
225–450 –55 dB 25 kW 553-225
400–800 –55 dB 15 kW 553-401

750–1250 –55 dB 10 kW 553-750

TABLE 16 DIRECTIONAL COUPLER ELEMENTS FOR 31⁄8" EIA LINES

FREQUENCY NOMINAL MAX. MAIN

BAND (MHz) COUPLING LINE POWER

MODEL

50–100 –60 dB 60 kW 606-50

75–150 –60 dB 60 kW 606-75
125–250 –60 dB 60 kW 606-125
225–450 –60 dB 60 kW 606-225
400–870 –60 dB 60 kW 606-400

TABLE 17 DIRECTIONAL COUPLER ELEMENTS FOR 61⁄8" EIA LINES

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37

PLUG-IN ELEMENTS

For 15⁄8" and 31⁄8" Lines

POWER FREQUENCY BANDS (MHz)

RANGE 2-30 25-60 50-125 100-250 200-500 400-1000

100 W — 100A1 100B1 100C1 100D1 100E1
250 W — 250A1 250B1 250C1 250D1 250E1

500 W — 500A1 500B1 500C1 500D1 500E1
1000 W — 1000A1 1000B1 1000C1 1000D1 1000E1
2500 W 2500H1 2500A1 2500B1 2500C1 2500D1 2500E1
5000 W 5000H1 5000A1 5000B1 5000C1 5000D1 5000E1

10 kW 10KH1 10KA1 10KB1 10KC1 — —

25 kW 25KH1 25KA1 25KB1 — — —

TABLE 15⁄8A STANDARD ELEMENTS 100 µA

ELEMENTS FOR 15⁄8" LINE SECTIONS ELEMENTS FOR 31⁄8" LINE SECTIONS

POWER FREQUENCY BANDS (MHz)

RANGE 2-30 25-60 50-125 100-250 200-500 400-1000

100 W — — 100B3 100C3 100D3 100E3
250 W — — 250B3 250C3 250D3 250E3

500 W — 500A3 500B3 500C3 500D3 500E3
1000 W — 1000A3 1000B3 1000C3 1000D3 1000E3
2500 W 2500H3 2500A3 2500B3 2500C3 2500D3 2500E3
5000 W 5000H3 5000A3 5000B3 5000C3 5000D3 5000E3

10 kW 10KH3 10KA3 10KB3 10KC3 10KD3 10KE3

25 kW 25KH3 25KA3 25KB3 25KC3 25KD3 25KE3

50 kW 50KH3 50KA3 50KB3 50KC3 — —
100 kW 100KH3 — — — — —

TABLE 31⁄8A STANDARD ELEMENTS 100 µA

POWER FREQUENCY BANDS (MHz)

RANGE 2-30 25-60 50-125 100-250 200-500 400-1000

100 W — 100A12 100B12 100C12 100D12 100E12
250 W — 250A12 250B12 250C12 250D12 250E12

500 W 500H12 500A12 500B12 500C12 500D12 500E12
1000 W 1000H12 1000A12 1000B12 1000C12 1000D12 1000E12
2500 W 2500H12 2500A12 2500B12 2500C12 2500D12 2500E12
5000 W 5000H12 5000A12 5000B12 5000C12 5000D12 5000E12

10 kW 10KH12 10KA12 10KB12 10KC12 — —

25 kW 25KH12 25KA12 25KB12 — — —

TABLE 15⁄8AA STANDARD ELEMENTS 30 µA

POWER FREQUENCY BANDS (MHz)

RANGE 2-30 25-60 50-125 100-250 400-1000

300 W — — 300B1 300C1 300E1

600 W — — 600B1 600C1 600E1
1500 W 1500H1 — 1500B1 1500C1 1500E1
3000 W 3000H1 3000A1 3000B1 3000C1 3000E1
6000 W 6000H1 — 6000B1 6000C1 6000E1

15 kW 15KH1 — 15KB1 — —

TABLE 15⁄8B STANDARD ELEMENTS 100 µA

POWER FREQUENCY BANDS (MHz)

RANGE 2-30 50-125 100-250 400-1000

300 W 300H12 300B12 300C12 300E12

600 W 600H12 600B12 600C12 600E12
1500 W 1500H12 1500B12 1500C12 1500E12
3000 W 3000H12 3000B12 3000C12 3000E12
6000 W 6000H12 6000B12 6000C12 6000E12

15 kW 15KH12 15KB12 — —

TABLE 15⁄8BB STANDARD ELEMENTS 30 µA

POWER FREQUENCY BANDS (MHz)

RANGE 25-60 50-125 100-250

8000 W 8000A1 8000B1 8000C1

TABLE 15⁄8C STANDARD ELEMENTS 100 µA

POWER FREQUENCY BANDS (MHz)

RANGE 2-30 25-60 50-125 100-250 200-500 400-1000

100 W — 100A32 100B32 100C32 100D32 100E32
250 W — 250A32 250B32 250C32 250D32 250E32

500W 500H32 500A32 500B32 500C32 500D32 500E32
1000 W 1000H32 1000A32 1000B32 1000C32 1000D32 1000E32
2500 W 2500H32 2500A32 2500B32 2500C32 2500D32 2500E32
5000 W 5000H32 5000A32 5000B32 5000C32 5000D32 5000E32

10 kW 10KH32 10KA32 10KB32 10KC32 10KD32 10KE32
25 kW 25KH32 25KA32 25KB32 25KC32 25KD32 25KE32
50 kW 50KH32 50KA32 50KB32 50KC32 — —

100 kW 100KH32 — — — — —

TABLE 31⁄8AA STANDARD ELEMENTS 30 µA

POWER FREQUENCY BANDS (MHz)

RANGE 50-125 100-250 400-1000

600 W 600B3 600C3 600E3
1500 W 1500B3 1500C3 1500E3
3000 W 3000B3 3000C3 3000E3
6000 W 6000B3 6000C3 6000E3

15 kW 15KB3 15KC3 15KE3

30 kW 30KB3 30KC3 30KE3

TABLE 31⁄8B STANDARD ELEMENTS 100 µA

POWER FREQUENCY BANDS (MHz)

RANGE 50-125 100-250 400-1000

600 W 600B32 600C32 600E32

1500 W 1500B32 1500C32 1500E32
3000 W 3000B32 3000C32 3000E32
6000 W 6000B32 6000C32 6000E32

15 kW 15KB32 15KC32 15KE32

30 kW 30KB32 30KC32 30KE32

TABLE 31⁄8BB STANDARD ELEMENTS 30 µA

Note – transmission line power rating should not be exceeded.

POWER FREQUENCY BANDS (MHz)

RANGE 100-250

8000 W 8000C3

TABLE 31⁄8C STANDARD ELEMENTS 100 µA

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PLUG-IN ELEMENTS

For 41⁄16" and 61⁄8" Lines

POWER FREQUENCY BANDS (MHz)

RANGE 50-125 100-250 400-1000

2500 W 2500B5 2500C5 2500E5
5000 W 5000B5 5000C5 5000E5

10 kW 10KB5 10KC5 10KE5
25 kW 25KB5 25KC5 25KE5
50 kW 50KB5 50KC5 —

TABLE 41⁄16A STANDARD ELEMENTS 100 µA

POWER FREQUENCY BANDS (MHz)
RANGE 50-125 100-250 400-1000

2500 W 2500B52 2500C52 2500E52
5000 W 5000B52 5000C52 5000E52

10 kW 10KB52 10KC52 10K352
25 kW 25KB52 25KC52 25KE52
50 kW 50KB52 50KC52 —

TABLE 41⁄16AA STANDARD ELEMENTS 30 µA

POWER FREQUENCY BANDS (MHz)

RANGE 50-125 100-250 400-1000

3000 W 3000B6 3000C6 3000E6
6000 W 6000B6 6000C6 6000E6

15 kW 15KB6 15KC6 15KE6
30 kW 30KB6 30KC6 30KE6
60 kW 60KB6 60KC6 60KE6

TABLE 61⁄8B STANDARD ELEMENTS 100 µA

POWER FREQUENCY BANDS (MHz)

RANGE 50-125 100-250 400-1000

3000 W 3000B62 3000C62 3000E62
6000 W 6000B62 6000C62 6000E62

15 kW 15KB62 15KC62 15KE62
30 kW 30KB62 30KC62 30KE62
60 kW 60KB62 60KC62 60KE62

TABLE 61⁄8BB STANDARD ELEMENTS 30 µA

POWER FREQUENCY BANDS (MHz)

RANGE 50-125 100-250 400-1000

8000 W 8000B6 8000C6 8000E6

80 kW 80KB6 80KC6 80KE6

TABLE 61⁄8C STANDARD ELEMENTS 100 µA

POWER FREQUENCY BANDS (MHz)
RANGE 50-125 100-250 400-1000

1500 W 1500B5 1500C5 1500E5
3000 W 3000B5 3000C5 3000E5
6000 W 6000B5 6000C5 6000E5

15 kW 15KB5 15KC5 15KE5
30 kW 30KB5 30KC5 30KE5
60 kW 60KB5 60KC5 —

TABLE 41⁄16B STANDARD ELEMENTS 100 µA

POWER FREQUENCY BANDS (MHz)
RANGE 50-125 100-250 400-1000

1500 W 1500B52 1500C52 1500E52
3000 W 3000B52 3000C52 3000E52
6000 W 6000B52 6000C52 6000E52

15 kW 15KB52 15KC52 15KE52
30 kW 30KB52 30KC52 30KE52
60 kW 60KB52 60KC52 —

TABLE 41⁄16BB STANDARD ELEMENTS 30 µA

POWER FREQUENCY BANDS (MHz)
RANGE 50-125 100-250 400-1000

8000 W 8000B5 8000C5 8000E5

80 kW 80KB5 80KC5 —

TABLE 41⁄16C STANDARD ELEMENTS 100 µA

ELEMENTS FOR 41⁄16" LINE SECTIONS

POWER FREQUENCY BANDS (MHz)

RANGE 2-30 25-60 50-125 100-250 200-500 400-1000

1000 W — 1000A6 1000B6 1000C6 1000D6 1000E6
2500 W — 2500A6 2500B6 2500C6 2500D6 2500E6
5000 W — 5000A6 5000B6 5000C6 5000D6 5000E6

10 kW 10KH6 10KA6 10KB6 10KC6 10KD6 10KE6
25 kW 25KH6 25KA6 25KB6 25KC6 25KD6 25KE6

50 kW 50KH6 50KA6 50KB6 50KC6 50KD6 50KE6
100 kW 100KH6 100KA6 100KB6 100KC6 — —
250 kW 250KH6 — — — — —

TABLE 61⁄8A STANDARD ELEMENTS 100 µA

POWER FREQUENCY BANDS (MHz)

RANGE 2-30 25-60 50-125 100-250 200-500 400-1000

250 W — 250A62 250B62 250C62 250D62 250E62

500 W — 500A62 500B62 500C62 500D62 500E62
1000 W 1000H62 1000A62 1000B62 1000C62 1000D62 1000E62
2500 W 2500H62 2500A62 2500B62 2500C62 2500D62 2500E62
5000 W 5000H62 5000A62 5000B62 5000C62 5000D62 5000E62

10 kW 10KH62 10KA62 10KB62 10KC62 10KD62 10KE62
25 kW 25KH62 25KA62 25KB62 25KC62 25KD62 25KE62

50 kW 50KH62 50KA62 50KB62 50KC62 50KD62 50KE62
100 kW 100KH62 100KA62 100KB62 100KC62 — —
250 kW 250KH62 — — — — —

TABLE 61⁄8AA STANDARD ELEMENTS 30 µA

ELEMENTS FOR 61⁄8" LINE SECTIONS

Note – transmission line power rating should not be exceeded.

Rigid LineRigid Line

PrProductsoducts

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39

TERMALINE

®

RF ABSORPTION WATTMETERS

Selection Guide, 60 Watt

Absorption wattmeters were first produced by Bird in 1948 and we continue
to refine these instruments.

TERMALINE

®

Absorption Wattmeters give you the convenience of a combination
measuring and terminating unit for servicing 50-ohm systems. These instruments
consist of a direct-reading meter and load resistor that dissipates RF power during
measurement. Their individual frequency coverage is generally wider than that of
directional meters.

Power ratings range from 150 watts to 2500 watts, and are conservative rated.
Most of the Models have been purchased under U.S., European or Middle East
military standards.

The 6730 Series absorption wattmeters feature a choice of three power ranges
selected through a rotary switch.

The 6100 Series wattmeters and load sections are joined with Bird latch connectors
which permit easy separation. This feature allows use of the resistor as an indepen­dent termination.

Use the Selection Guide below to find the absorption wattmeter best for
your needs.

ABSORPTION WATTMETER SELECTION GUIDE

RATING RANGE MHz

1000 W 25–1000
1000 W 1.5–35
1200 W 25–1000
2500 W 25–1000
2500 W 1.5–35

20 25 30 50 60 100 120 150 250 500 MODEL PAGE

• • 6104 39

• • • 6151A 40

• • 6154 40

• • 6156 40

• • 6732B 40

• • • 6734B 40

• • • 6734B030 40

50 100 120 250 500 600 1000 1200 2500 MODEL PAGE

• • • 6736A 41

• • • 6736-030A 41

• • • 6735-300A 41

• • • 6737A 41

• • • 6737-030A 41

60 WATT MODEL 6104

Power Range: 60 W
Power Scales: 2/6/20/60 W
Frequency Range and VSWR:

1.1 max. 25–512 MHz

Accuracy:

±

5% of full scale

Connector: Female N
Load Coolant: 0.1 gal (378.5 ml) refined

mineral oil

Finish: Gray powder coat
Nominal Size: (includes connector)

9

5

⁄8" L × 63⁄8" H × 35⁄16" W

(244 mm

× 162 mm × 100 mm)

Weight: 7 lbs. (3.2 kg)
Meter Housing: Can be detached from load

for convenient reading. 3 ft. cable

See our connector adapter kits on page 61.

*FULL

SCALE CALIBRATED
POWER FREQUENCY
RATING RANGE MHz 0.2 0.8 1 2 2.5 3 5 6 10 15

60 W 25–512 • •
100 W 2–2700 • • • •
150 W 25–1000 • •
150 W 25–512 • •
250 W 25–1000 •
500 W 25–1000
500 W 1.5–35

POWER SCALES IN WATTS

60–150 watts

Pages 39–40

250–2500 watts

Pages 40–41

Rigid LineRigid Line

PrProductsoducts

Phone: [phone] • Fax: [phone]

40

TERMALINE

®

RF ABSORPTION WATTMETERS

100, 150, 250, 500 Watt

100 WATT MODEL 6151A

Power Rating: Up to 100 W depending

on element*

Frequency Range: 2–2700 MHz depending

on element*

Power Scales: 1/2.5/5/10/25/50/100 W

determined by plug-in element*

VSWR: 1.1 max. DC-1000 MHz, 1.25 min.

1000–2300 MHz

Accuracy:

±

5% of full scale to 1 GHz, ±8%

to 2.3 GHz

Connector: QC type (Female N normally

supplied)

Load Coolant: 1 pint (473 ml) refined

mineral oil

Finish: Gray powder coat
Nominal Size: 127⁄8" L × 63⁄8" H × 315⁄16" W

(326 mm

× 162 mm × 100 mm)

Weight: 8 lbs. (3.6 kg)
Elements: Tables 1, 2, 3 on pages 25–26.

*Select plug-in element(s) to suit your frequency and power range.
Do not exceed the power rating of the element or 100 W, whichever is less.

150 WATT MODELS 6154, 6156

Power Rating: 150 W
Power Scales: 5/15/50/150 W
Frequency Range and VSWR:

6154: 1.1 max. 25–1000 MHz
6156: 1.1 max. 25–512 MHz

Accuracy:

6154: ±5% of full scale 25–512 MHz,
±

10% of full scale 512–1000 MHz

6156: ±5% of full scale 25–512 MHz

Connector: Female N

Load Coolant: 0.1 gal (378.5 ml) refined

mineral oil

Finish: Gray powder coat
Nominal Size: (includes connector)

12

5

⁄32" L × 63⁄8" H × 315⁄16" W

(309 mm

× 162 mm × 100 mm)

Weight: 8 lbs. (3.6 kg)
Meter Housing: Separates from load for

convenient reading. 3 ft. cable.

250 WATT MODEL 6732B

Power Rating: 250 W
Power Scales: 10/50/250 W
Frequency Range and VSWR:

1.1 max. 25–1000 MHz

Accuracy:

±

5% of full scale 25–512 MHz,

±

10% of full scale 512–1000 MHz

Connector: QC type

(Female N normally supplied)

Load Coolant: 0.35 gal. (1.3 liters) silicone oil

Finish: Gray powder coat
Nominal Size: Load 125⁄8" L × 81⁄2" W ×

515⁄16" H (321 mm × 216 mm × 151 mm);
Meter 5

7

⁄8" H × 35⁄8" W × 315⁄16" D ,

(149 mm

× 92 mm × 100 mm)

Weight: 13 lbs., 11 oz. (6.2 kg)
Meter: Separates from load for convenient

reading. 4 ft. cable.

500 WATT MODELS 6734B, 6734B030

Power Rating: 500 W
Power Scales: 25/100/500 W
Frequency Range and VSWR:

6734B: 1.15 max. 25–1000 MHz
6734B030: 1.15 max. 1.5–35 MHz

Accuracy:

6734B: ±5% of full scale, 25–512 MHz,
±

10% of full scale, 512–1000 MHz

6734B030: ±10% of full scale, 1.5–35 MHz

Connector: QC type

(Female N normally supplied)

Load Coolant: 0.9 gal. (3.4 liters) refined

mineral oil

Finish: Gray powder coat
Nominal Size: Load 1915⁄16"L × 81⁄2"H ×

5-15/16"W (506 mm x 216 mm × 151 mm);
Meter 5

7

⁄8" H × 35⁄8" W × 315⁄16" D,

(149 mm

× 92 mm × 100 mm)

Weight: 23 lbs., 11 oz. (10.6 kg)
Meter: Separates from load for convenient

reading. 4 ft. cable.

Bird oil-dielectric wattmeters have never been and are not now manufactured with
Poly Chlorinated Biphenyls (PCBs).

E-mail: [email protected] • Internet: www.bird-electronic.com

41

TERMALINE

®

RF ABSORPTION WATTMETERS

1000, 1200, 2500 Watt

Bird oil-dielectric wattmeters have never been and are not now manufactured with
Poly Chlorinated Biphenyls (PCBs).

1000 WATT MODELS 6736A, 6736-030A

Power Rating: 1000 W
Power Scales: 50/250/1000 W
Frequency Range and VSWR:

6736A: 1.15 max. 25–1000 MHz
6736-030A: 1.15 max.1.5–35 MHz

Accuracy:

6736A: ±5% of full scale, 25–512 MHz,
±

10% of full scale, 512–1000 MHz

6736-030A: ±10% of full scale, 2–32 MHz

Connector: QC type (Female LC normally sup-

plied and Female N supplied unmounted)

Load Coolant: 1.1 gal. (4.1 liters) silicone oil
Finish: Gray powder coat
Nominal Size: Load 21" L × 81⁄2" H ×

515⁄16"W (533 mm x 216 mm x 151 mm);
Meter 5

9

⁄16" H × 61⁄2" W × 311⁄32" D,

(141 mm

× 165 mm × 85 mm)

Weight: 6736A: 30 lbs. (13.5 kg), 6736-030A:

30.5 lbs. (13.7 kg)

Meter: Separates from load for convenient

reading. 4 ft. cable.

1200 WATT MODEL 6735-300A

Power Rating: 1200 W for 1⁄2hour,

1000 W continuous

Power Scales: 120/600/1200 W
Frequency Range and VSWR: 1.15 max.

25–1000 MHz

Accuracy:

±

5% of full scale 25–512 MHz,

±

10% of full scale 512–1000 MHz

Connector: QC type

(Female LC normally supplied, and
Female N supplied unmounted)

Load Coolant: 2.9 gal. (11 liters) refined

mineral oil

Finish: Gray powder coat
Nominal Size: Load 211⁄2" L × 173⁄16" H ×

7" W (546 mm × 437 mm × 178 mm);
Meter 5

9

⁄16" H × 61⁄2" W × 311⁄32" D,

(141 mm

× 165 mm × 85 mm)

Weight: 63 lbs. (28.4 kg)
Meter: Separates from load for convenient

reading. 4 ft. cable.

2500 WATT MODELS 6737A, 6737-030A

Power Rating: 2500 W continuous with

water cooling, 200 W without.

Power Scales: 100/500/2500 W
Frequency Range and VSWR:

6737A: 1.15 max. 25–1000 MHz
6737-030A: 1.15 max. 1.5–35 MHz

Accuracy:

6737A: ±5% of full scale, 25–512 MHz
±

10% of full scale, 512–1000

6737-030A: ±10% of full scale, 2–32 MHz

Connector: QC type

(Female LC normally supplied)

Load Coolant: 0.9 gal. (3.4 liters) refined

mineral oil, water cooled

Water Connections: 3⁄8" tubing to accept

rubber hose

Flow Rate: 1⁄2gpm (2 liters/min)
Operating Position: Vertical - connector

down above 200 W when water cooled

Finish: Gray powder coat
Nominal Size: Load 2013⁄16" L × 81⁄2" H ×

515⁄16" W (529 mm × 216 mm × 151 mm);
Meter 5

9

⁄16" H × 61⁄2" W × 311⁄32" D,

(141 mm

× 165 mm × 85 mm)

Weight: 6737A 33 lbs. (14.9 kg), 6737-030A

33.5 lbs. (15.1 kg)

Meter: Separates from load for convenient

reading. 4 ft. cable.

Phone: [phone] • Fax: [phone]

42

Use this Model Number Definition to specify part numbers when ordering T- and CT-Series dry loads.

TERMALINE

®

RF COAXIAL TERMINATIONS

Product Selection Guide and Model Number Definition

POWER DIELECTRIC COOLING SEE
RATING (CW)

MODEL/SERIES AND INPUT CONNECTOR CHOICES†

MEDIUM METHOD PAGE

2 W 2-T Series BNC (F), BNC (M), N (F), N (M), TNC (F), TNC (M) Air Convection 43
5 W 5-T Series BNC (F), BNC (M), N (F), N (M), TNC (F), TNC (M) Air Convection 43
10 W 10-T Series BNC (F), BNC (M), N (F), N (M), TNC (F), TNC (M) Air Convection 43
25 W 25-T Series BNC (F), BNC (M), N (F), N (M), TNC (F), TNC (M) Air Convection 43
25 W 25-CT Series SMA (M), DMA (M) Air Conduction 43
50 W 50-T Series BNC (F), BNC (M), N (F), N (M), TNC (F), TNC (M) Air Convection 44
50 W 50-CT Series SMA (M), SMA (M) Air Conduction 44
75 W 75-T Series BNC (F), BNC (M), N (F), N (M), TNC (F), TNC (M) Air Convection 44
100 W 100-T Series BNC (F), BNC (M), IEC 7/16 (F), IEC 7/16 (M), N (F), N (M), TNC (F), TNC (M) Air Convection 44
100 W 100-CT Series SMA (F), SMA (M) Air Conduction 44
150 W 150-T Series BNC (F), BNC (M), IEC 7/16 (F), IEC 7/16 (M), N (F), N (M), TNC (F), TNC (M) Air Convection 45
150 W 150-CT Series BNC (F), BNC (M), N (F), N (M), SMA (F), SMA (M), TNC (F), TNC (M) Air Conduction 45
150 W 8135 QC N (F) Oil Convection 45
250 W 250-CT Series BNC (F), BNC (M), N (F), N (M), SMA (F), SMA (M), TNC (F), TNC (M). Air Conduction 45

250 W 8141 QC N (F) Oil Convection 45
300 W 300-T Series BNC (F), BNC (M), IEC 7/16 (F), IEC 7/16 (M), N (F), N (M), TNC (F), TNC (M) Air Convection 46
300 W 8072A-1 N (F) Air Conduction (needs heatsink) 46
500 W 500-CT Series BNC (F), BNC (M), N (F), N (M), SMA (F), SMA (M), TNC (F), TNC (M). Air Conduction 46

For IEC 7/16, specify 500-CT-FE1 for IEC 7/16 (F), or 500-CT-ME1 for IEC 7/16 (M)
500 W 8201 QC N (F) Oil Convection 46
600 W 8401 QC N (F) Oil Convection 47
600 W 8431 SQC N (F) 500 W in horizontal position Air Convection 46
1 kW 8251 QC LC (F), N (F) unmounted Oil Convection 47
1 kW 8833-300 QC LC (F), N (F) unmounted Oil Convection 47
1 kW 8710 Series N (F,M); C (F,M);

7

⁄8" EIA Flg. Air Water (tap) 49

1.5 kW 8860 Series QC LC (F); 1

5

⁄8" and 31⁄8" Unflg. or EIA Flg. Oil Convection 47

2.5 kW 8230 Q LC (F); 200 W without water cooling Oil Water (tap) 47

2.5 kW 8890-300 Series QC LC (F); 1

5

⁄8" and 31⁄8" Unflg. or EIA Flg. Oil Convection 48

5 kW 8890-300 Series plus BA-300 blower 1

1

⁄4 kW with blower turned off, connectors as above Oil Forced Air 48
5 kW 8890-315, –320 Series assembly, connectors as above Oil Forced Air 48
5 kW 8720, 8726 1

5

⁄8" EIA Flg., QC LC (F) Air Water (tap) 50

5 kW 8921 Series QC LC (F), 1

5

⁄8" EIA Flg., 31⁄8" Unflg. or EIA Flg. Oil Convection 49

10 kW 8931-115, –230 Series QC LC (F), 1

5

⁄8" EIA Flg., 31⁄8" Unflg. or EIA Flg. Oil Forced Air 49

10 kW 8730 Series 1

5

⁄8" EIA Flg., 31⁄8" Unflg. or EIA Flg. Air Water (tap) 50

10 kW 8631-115, –230 1

5

⁄8 EIA Flg., 31⁄8" EIA Flg., 31⁄8" Unflg. Air Water/Forced Air 51

10 kW 8578 Series 1

5

⁄8 EIA Flg., 31⁄8" Unflg. Air Forced Air 52

15 kW 8578 Series 1

5

⁄8 EIA Flg., 31⁄8" Unflg. Air Forced Air 52

20 kW 8745/46 3

1

⁄8" EIA Flg., 31⁄8" Unflg. Air Water (tap) 50

25 kW 8572A/73A-115-6, –230-5 3

1

⁄8" EIA Flg., 31⁄8" Unflg. Air Forced Air 53

25 kW 8645-115, –230 3

1

⁄8" EIA Flg., 31⁄8" Unflg. Air Water/Forced Air 51

30 kW 8755/56 3

1

⁄8" EIA Flg., 31⁄8" Unflg. Air Water (tap) 50

40 kW 8765/76 3

1

⁄8" EIA Flg., 31⁄8" Unflg. Air Water (tap) 51

50 kW 8775/76 3

1

⁄8" EIA Flg., 31⁄8" Unflg. Air Water (tap) 51

50 kW 8655/56-115, -230 3

1

⁄8" EIA Flg., 31⁄8" Unflg. Air Water/Forced Air 52

80 kW 8792/93 6

1

⁄8" EIA Flg., 61⁄8" Unflg. Air Water (tap) 51

TERMINATION SELECTION GUIDE

100 – T – FN

Power Rating (Watts)

Product Type

T – Convection-colled Termination
CT – Conduction-cooled Termination

Connector Gender

F – Female
M – Male

Connectors

+

A – SMA
B – BNC
E – IEC 7/16
N – N
T – TNC

† Where QC quick-change or SQC small quick-change connectors are shown, the type listed is normally supplied when no other is specified.

For other choices, see page 60.

* Termination Model Number Definition:

+ Call for custom connector options not shown in this catalog

E-mail: [email protected] • Internet: www.bird-electronic.com

43

TERMALINE

®

RF COAXIAL TERMINATIONS

Dry Loads

Power Rating:

5 W max. @ 40°C
6 W max. @ 25°C

Connectors: BNC, N, TNC
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 6 GHz at 1.25:1 max. (N type)
1 GHz to 4 GHz at 1.25:1 max.

(BNC and TNC)

Impedance: 50 ohms, nominal
Ambient Temperature Range: –40°C to +40°C
Operating Position: Any
Coolant: Dry (Convection cooled)
Finish: Silver or Tri-alloy plated
Nominal Size: (with Male N-type connector):

1.6" L

× 0.8" Dia., (40.7 mm × 20.4 mm)

Weight: 1.9 oz. (55 g)

5 WATT 5-T SERIES*

Power Rating:

10 W max. @ 40°C
12 W max. @ 25°C

Connectors: BNC, N, TNC
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 4 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal

Ambient Temperature Range: –40°C to +40°C
Operating Position: Any
Coolant: Dry (Convection cooled)
Finish: Black anodized.

Silver or Tri-alloy plated connector

Nominal Size: (with N-type connector):

2" L

× 2.3" Dia., (50.8 mm × 58.5 mm )

Weight: 5.1 oz. (146 g)

10 WATT 10-T SERIES*

Power Rating:

25 W max. @ 40°C
30 W max. @ 25°C

Connectors: BNC, N, TNC
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 4 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal

Ambient Temperature Range: –40°C to +40°C
Operating Position: Any
Coolant: Dry (Convection cooled)
Finish: Black anodized. Silver or Tri-alloy

plated connector

Nominal Size: (with N-type connector):

4.7" L

× 2.3" Dia., (119.4 mm × 58.5 mm)

Weight: 10.7 oz. (305 g)

25 WATT 25-T SERIES*

Power Rating:

2 W max. @ 40°C

2.4 W max. @ 25°C

Connectors: BNC, N, TNC
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 6 GHz at 1.25:1 max. (N type)
1 GHz to 4 GHz at 1.25:1 max.

(BNC and TNC)

Impedance: 50 ohms, nominal
Ambient Temperature Range: –40°C to +40°C
Operating Position: Any
Coolant: Dry (Convection cooled)
Finish: Silver or Tri-alloy plated
Nominal Size: (with Male N-type connector):

1.6" L

× 0.8" Dia., (40.7 mm × 20.4 mm)

Weight: 1.9 oz. (55 g)

2 WATT 2-T SERIES*

NEW

NEW

* See page 42 for a Model Number Definition that instructs you how to order the correct part.

** When mounted to a suitable heatsink capable of maintaining a 100°C flange temperature.

Power Rating:**25 W max. @ 100°C flange

temperature, derated to 0 W @ 150°C.

Frequency Range and VSWR:

DC to 1 GHz at 1.15:1 max.
1 GHz to 3 GHz at 1.25:1 max.

Connectors: SMA
Coolant: Dry (Conduction cooled)
Operating Position: Any

Impedance: 50 ohms, nominal
Finish: Silver or Tri-alloy plated
Nominal Size (includes connector):

0.9" L

× 1.0" W × 0.5" H,

(22.9 mm

× 25.4 mm × 12.7 mm )

Base to Connector Centers: 0.25" (6.4 mm)
Mounting Centers: 0.614" (15.6 mm)
Weight: 0.4 oz. (11.4 g)

25 WATT 25-CT-FA, 25-CT-MA

NEW

Phone: [phone] • Fax: [phone]

TERMALINE
RF COAXIAL TERMINATIONS

®

Dry- and Oil-Dielectric Loads

44

Power Rating:

75 W max. @ 40°C
90 W max. @ 25°C

Connectors: BNC, N, TNC, IEC 7/16
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 2.4 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal

Ambient Temperature Range: –40°C to +40°C
Operating Position: Any
Coolant: Dry (Convection cooled)
Finish: Black anodized. Silver or Tri-alloy

plated connector

Nominal Size: (with N-type connector):

6.7" L

× 2.3" Dia., (170.2 mm × 58.5 mm)

Weight: 1.575 lbs. (0.72 kg)

75 WATT 75-T SERIES*

50 WATT 50-T SERIES*

Power Rating:

50 W max. @ 40°C
60 W max. @ 25°C

Connectors: BNC, N, TNC
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 4 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal

Ambient Temperature Range: –40°C to +40°C
Operating Position: Any
Coolant: Dry (Convection cooled)
Finish: Black anodized. Silver or Tri-alloy

plated connector

Nominal Size: (with N-type connector):

4.7" L

× 2.3" Dia., (119.4 mm × 58.5 mm)

Weight: 1.13 lb. (0.52 kg)

50 WATT 50-CT-FA, 50-CT-MA

Power Rating:**50 W max. @ 100°C flange

temperature, derated to 0 W @ 150°C

Frequency Range and VSWR: DC to 3 GHz at

1.15:1 max. 3 GHz to 6 GHz at 1.25:1 max.

Connectors: SMA
Coolant: Dry (Conduction cooled)
Operating Position: Any
Impedance: 50 ohms, nominal

Finish: Silver or Tri-alloy plated
Nominal Size (includes connector):

0.86" L

× 0.75" W × 0.39" H,

(21.9 mm

× 19.2 mm × 10.0 mm)

Base to Connector Center: 0.162"(4.12 mm)
Mounting Centers: 0.52" (13.3 mm)
Weight: 1.1 oz.. (31.2 g)

NEW

Power Rating: 100 W max. @ 40°C

120 W max. @ 25°C

Connectors: BNC, IEC 7/16, N, TNC
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 2.4 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal
Ambient Temperature Range: –40°C to +40°C
Operating Position: Vertical

Coolant: Dry (Convection cooled)
Finish: Black semigloss paint per federal

standard 595. Silver or Tri-alloy
plated connector

Nominal Size: (with N-type connector):

6

13

⁄32" H × 21⁄4" W × 613⁄16" D,

(162.6 mm

× 66.1 mm × 172.8 mm)

Weight: 3.6 lbs. (1.64 kg)

100 WATT 100-T SERIES*

Power Rating:**100 W max. @ 100°C flange

temperature, derated to 0 W @ 150°C

Frequency Range and VSWR: DC to 2 GHz at

1.15:1 max. 2 GHz to 3 GHz at 1.25:1 max.

Connectors: SMA
Coolant: Dry (Conduction cooled)
Operating Position: Any
Impedance: 50 ohms, nominal

Finish: Silver or Tri-alloy plated
Nominal Size (includes connector):

1.34" L

× 1.375" W × 0.56" H,

(34.1 mm

× 35.0 mm × 14.3 mm)

Base to Connector Center: 0.26" (6.6 mm)
Mounting Centers: 0.625" × 1.125"

(15.9 mm

× 28.6 mm)

Weight: 1.0 oz. (28.4 g)

100 WATT 100-CT-FA, 100-CT-MA

NEW

NEW

NEW

* See page 42 for a Model Number Definition that instructs you how to order the correct part.

** When mounted to a suitable heatsink capable of maintaining a 100°C flange temperature.

E-mail: [email protected] • Internet: www.bird-electronic.com

Power Rating:**150 W max @ 100°C flange

temperature, derated to 0 W @150°C

Frequency Range and VSWR: DC to 1 GHz at

1.10:1 max. 1 GHz to 2.4 GHz at 1.25:1 max.

Connectors: N, BNC, TNC, SMA
Coolant: Dry (conduction cooled)
Operating Position: Any
Impedance: 50 ohms, nominal

Finish: Silver or Tri-alloy plated
Nominal Size (with N connector):

1.86" L

× 1.25" W × 1.062" H,

(47.3 mm

× 31.8 mm × 27.0 mm)

Base to Connector Center: 0.531" (13.5 mm)
Mounting Centers: 0.575" × 0.825"

(14.6 mm

× 21.0 mm)

Weight (with N connector): 2.2 oz. (62.5 g)

150 WATT 150-CT SERIES*

150 WATT MODEL 8135

Power Rating: 150 W continuous
Frequency Range and VSWR:

DC to 1 GHz at 1.1 max.
1 to 2.5 GHz at 1.2 max.

2.5 to 4 GHz at 1.3 max.

Ambient Temperature Range: –40˚C to +45˚C
Connector: QC type

(Female N normally supplied)

Load Coolant: 0.1 gal. (380 ml) refined

mineral oil

Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: (includes connector)

9

1

⁄2" L × 611⁄32" H × 315⁄16" W

(241 mm

× 161 mm × 100 mm)

Weight: 6 lbs. (2.7 kg)

250 WATT MODEL 8141

Power Rating: 250 W continuous
Frequency Range and VSWR:

DC to 1 GHz at 1.1 max.
1 to 1.8 GHz at 1.2 max.

1.8 to 2.5 GHz at 1.3 max.

Ambient Temperature Range:

–40˚C to +45˚C

Connector: QC type

(Female N normally supplied)

Load Coolant: 0.35 gal. (1.3 liters)

silicone oil

Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: (includes connectors)

9

9

⁄16" L × 81⁄2" H × 515⁄16" W

(243 mm

× 216 mm × 151 mm)

Weight: 10 lbs. (4.5 kg)

TERMALINE

®

RF COAXIAL TERMINATIONS

Dry- and Oil-Dielectric Loads

Power Rating: 150 W max @ 40°C

180 W max @ 25°C

Connectors: N, TNC, BNC, IEC 7/16
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHZ to 2.4 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal
Ambient Temperature Range:

–40°C to +40°C

Operating Position: Vertical
Coolant: Dry (convection cooled)
Finish: Black semigloss paint per federal

standard 595. Silver or Tri-alloy
plated connector

Nominal Size: (with N-type connector):

11

15

⁄16" H × 25⁄8" W × 613⁄16" D,

(302 mm

× 66 mm × 173 mm)

Weight: 6.0 lbs. (2.73 kg.)

150 WATT 150-T SERIES*

NEW

45

250 WATT 250-CT SERIES*

Power Rating:**250 W max. @ 100°C flange

temperature, derated to 0 W @ 150°C

Frequency Range and VSWR:

SMA:

DC to 2 MHz at 1.15:1 max.
2 MHz to 3 MHz @ 1.25:1 max.
All Others: DC to 1 MHz @ 1.15:1 max.
1 MHz to 2.4 MHz @ 1.25:1 max.

Connectors: N, BNC, TNC, SMA
Coolant: Dry (conduction cooled)
Operating Position: Any

Impedance: 50 ohms, nominal
Finish: Silver or tri-alloy plated
Nominal Size (with N connector):

2.36" L

× 2.00" W × 1.062" H,

(60.0 mm

× 50.8 mm × 27.0 mm)

Base to Connector Center: SMA: 0.26"

(6.6 mm)

N: 0.515" (13.1 mm)

Mounting Centers: 0.875" × 1.625" (22.3 mm

× 41.3 mm)

Weight: (with N connector): 5.2 oz. (147.6 g)

NEW

Note: Model 250-CT-FA shown; 250-CT-FN
is identical in appearance to 500-CT-FN

* See page 42 for a Model Number Definition that instructs you how to order the correct part.

** When mounted to a suitable heatsink capable of maintaining a 100°C flange temperature.

Phone: [phone] • Fax: [phone]

600 WATT (DRY) MODEL 8431

Power Rating:

600 W continuous, vertical
500 W continuous, horizontal

Connectors: SQC Type

(Female N normally supplied)

Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 2.5 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal

Ambient Temperature Range:

–40°C to +45°C

Operating Position: Horizontal or vertical
Coolant: Dry (Convection cooled)
Finish: Black powder coat with anodized fins.
Nominal Size: (with N-type connector):

9

5

⁄16" H × 81⁄2" W ×135⁄16" D,

(235 mm

× 216 mm × 336 mm)

Weight: 13 lbs (5.91 kg.)

TERMALINE

®

RF COAXIAL TERMINATIONS

Dry- and Oil-Dielectric Loads

500 WATT MODEL 8201

Power Rating: 500 W continuous
Frequency Range and VSWR:

DC to 1 GHz at 1.1 max.
1 to 2.5 GHz at 1.25 max.

Ambient Temperature Range:

–40˚C to +45˚C

Connector: QC type

(Female N normally supplied)

Load Coolant: 0.9 gal. (3.42 liters) refined

mineral oil

Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: (includes connectors)

16

13

⁄16" L × 81⁄2" H × 515⁄16" W

(427 mm

× 216 mm × 151 mm)

Weight: 21 lbs. (9.5 kg)

Power Rating: 300 W max @ 40°C

360 W max @ 25°C

Connectors: N, TNC, BNC, IEC 7/16
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHZ to 2.4 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal
Ambient Temperature Range:

–40°C to +40°C

Operating Position: Vertical
Coolant: Dry (convection cooled)
Finish: Black semigloss paint per federal

standard 595. Silver or Tri-alloy
plated connector

Nominal Size: (with N-type connector):

10

15

⁄16" H × 513⁄32" W × 613⁄16" D,

(276.9 mm

× 137.2 mm × 172.8 mm)

Weight: 11.5 lbs. (5.23 kg.)

300 WATT 300-T SERIES*

Power Rating: 300 W continuous when

attached to suitable heat sink

Connectors: N Female normally supplied
Frequency Range and VSWR:

DC to 800 MHz at 1.10:1 max.
800 to 1500 MHz at 1.20:1 max.
1500 to 2500 MHz at 1.30:1 max.

Impedance: 50 ohms, nominal
Ambient Temperature Range: –40°C to +45°C

Heat Sink Required: 800 Sq. Inch Plate ×1⁄8"

or equivalent (5200 cm

2

× 3 mm)

Operating Position: Any
Coolant: Dry (conduction cooled)
Finish: Silver or Tri-alloy

Silver-plated or Tri-alloy connectors

Nominal Size: (with N-type connector):

4

25

⁄64" L × 2" W × 11⁄32" H

(110 mm

× 51 mm × 26 mm)

Weight: 12 oz. (340 g.)

300 WATT MODEL 8072A-1

46

500 WATT 500-CT SERIES*

Power Rating:**500 W max. @ 100°C flange

temperature, derated to 0 W @ 150°C

Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.

Connector: N, BNC, TNC, SMA, or IEC 7/16
Coolant: Dry (conduction cooled)
Operating Position: Any
Impedance: 50 ohms, nominal
Finish: Silver or tri-alloy plated

Nominal Size (includes connector):

N: 2.36" L × 2.00" W ×1.062" H,

(60.0 mm

× 50.8 mm × 27.0 mm)

IEC 7/16: 2.80" L × 2.00" W × 1.20" H,
(71.2 mm

× 50.8 mm × 30.5 mm)

Base to Connector Center: N: 0.515"

(13.1 mm)

IEC 7/16: 0.675" (17.2 mm)

Mounting Centers: 0.875" × 1.625"

(22.3 mm

× 41.3 mm)

Weight: N: 8.2 oz. (232.9 g)

IEC 7/16: 6.0 oz. ( 170.3 g)

NEW

* See page 42 for a Model Number Definition that instructs you how to order the correct part.

** When mounted to a suitable heatsink capable of maintaining a 100°C flange temperature.

E-mail: [email protected] • Internet: www.bird-electronic.com

TERMALINE

®

RF COAXIAL TERMINATIONS

Oil-Dielectric, Convection, and Water Cooled

1 kW MODEL 8251

Power Rating: 1000 W continuous
Frequency Range and VSWR:

DC to 1 GHz at 1.1 max.
1 to 2 GHz at 1.25 max.
2 to 2.4 GHz at 1.3 max.

Ambient Temperature Range: –40˚C to +45˚C
Connector: QC type (Female LC normally sup-

plied and Female N supplied unmounted)

Load Coolant: 1.1 gal. (4.1 liters) silicon oil
Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: (includes connectors)

17

29

⁄32" L × 81⁄2" H × 515⁄16" W

(455 mm

× 216 mm × 151 mm)

Weight: 25 lbs., 8 oz. (11.5 kg)

1 kW MODEL 8833-300

Power Rating: 1000 W continuous
Frequency Range and VSWR:

DC to 1 GHz at 1.1 max.
1 to 2.5 GHz at 1.25 max.

Ambient Temperature Range: –40˚C to +45˚C
Connector: QC type (Female LC normally sup-

plied) Female N supplied unmounted

Load Coolant: 2.9 gal. (11 liters) refined

mineral oil

Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: (with connectors)

23

1

⁄8" L × 173⁄16" H × 71⁄8" W

(587 mm

× 437 mm × 181 mm)

Weight: 54 lbs., 10 oz. (24.8 kg)

1.5 kW MODEL 8860 SERIES

Power Rating: 1500 W continuous
Frequency Range and VSWR:

DC to 1 GHz at 1.1 max.
1 to 2.0 GHz at 1.25 max.

Ambient Temperature Range: –40˚C to +45˚C
Load Coolant: 1.5 gal. (5.68 liters) silicone oil
Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: 71⁄2"W × 131⁄8"H

(184 mm

× 333 mm)

OVERALL

MODEL CONNECTOR

LENGTH

WEIGHT

8860 QC-LC(F) 171⁄8" 30 lbs.

(445 mm) (13.6 kg)

8861 1

5

⁄8" Unflg. 177⁄8" 31 lbs.

(454 mm) (14.1 kg)

8862 1

5

⁄8" EIA flg. 171⁄8" 31 lbs.

(445 mm) (14.1 kg)

8863 3

1

⁄8" Unflg. 185⁄8" 32 lbs.

(473 mm) (14.5 kg)

8864 3

1

⁄8" EIA flg. 191⁄2" 32 lbs.

(495 mm) (14.5 kg)

2.5 kW (WATER COOLED) MODEL 8230

Power Rating: With cooling water: 2500 W

Without cooling water: 200 W in vertical
position, 500 W in horizontal position

Frequency Range and VSWR:

DC to 1 GHz at 1.1 max.
1 to 2.5 GHz at 1.25 max.

Ambient Temperature Range: –40˚C to +45˚C
Water Temperature Range: +8˚C to +80˚C
Water Flow Rate: 1/2 gal./minute

(2 liters/minute) min.

Connector: QC type (Female LC normally

supplied)

Load Coolant: 0.9 gal. (3.4 liters) refined

mineral oil

Operating Position: Vertical, connector

down (when water cooled)

Finish: Gray powder coat
Nominal Size: (with connectors)

17

23

⁄32" L × 81⁄2" H × 515⁄16" W

(450 mm

× 216 mm × 151 mm)

Weight: 27 lbs. (12 kg)

600 WATT MODEL 8401

Power Rating: 600 W continuous
Frequency Range and VSWR:

DC to 1 GHz at 1.1 max.
1 to 2.8 GHz at 1.2 max.

2.8 to 3 GHz at 1.3 max.

Ambient Temperature Range: –40˚C to +45˚C
Connector: QC type

(Female N normally supplied)

Load Coolant: 0.7 gal. (2.65 liters) refined

mineral oil

Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: (with connectors)

16

13

⁄16" H × 81⁄2" W × 515⁄16" D,

(427 mm

× 216 mm × 151 mm)

Weight: 20 lbs. (9.1 kg)

47

Phone: [phone] • Fax: [phone]

TERMALINE

®

RF COAXIAL TERMINATIONS

Oil-Dielectric Loads

The 8890 Series is rated at 2.5 kW with convection cooling or 5 kW with the BA-300
forced-air cooling option. Both configurations can be ordered with an optional
Overload Thermoswitch (P/N 8890-008) or with two thermoswitches for “standby
service” as a reject load for dual transmitter systems.

With dual thermoswitches, one normally open switch closes to activate the blower
when power is applied to the load and coolant temperature rises, as when one
transmitter fails. The second normally closed switch, is an over-temperature inter­lock safety switch. For completely assembled and wired dual thermoswitch units,
order 8890/91/92/95/97/98-315 for 115 Vac, 50/60 Hz units, or 8890/91/92/95/97/
98-320 for 230 Vac, 50/60 Hz units.

2.5 kW AND 5 kW 8890 SERIES

Power Rating: 2500 W continuous
Frequency Range and VSWR:

DC to 1 GHz at 1.1 max.
1 to 2 GHz at 1.25 max.
2 to 2.4 GHz at 1.3 max.

Impedance: 50 ohms nominal

(8896-300 51.5 ohms nominal)

Ambient Temperature Range: –40˚C to +45˚C
Load Coolant: 2.9 gal. (11 liters) silicon oil
Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: 7" W × 173⁄16" H

(178 mm

× 547 mm). See table for length.

MODEL 8890-300 (left)
MODEL 8891-300 (right)
with BA-300-115

2.5 kW 8890-300 SERIES

NOTE: Overload thermoswitch P/N 8890-008 is optional. Free assembly when ordered as a package.
*** Specify –115 for 115 Vac Blower or –230 for 230 Vac blower.

NOTE: Overload thermoswitch P/N 8890-008 is optional. Free assembly when ordered as a package.

RECESS OVERALL

MODEL CONNECTOR

(IN.) LENGTH

WEIGHT

8890-300 QC-LC(F) — 231⁄8" 57 lbs.

(587 mm) (26 kg)

8892-300 1

5

⁄8" EIA Flg. 0.625 231⁄8" 58 lbs.

(587 mm) (26 kg)

8895-300 1

5

⁄8" Unflg. 0.438 223⁄16" 58 lbs.

(564 mm) (26 kg)

8891-300 3

1

⁄8" EIA Flg. 0.922 251⁄8" 59 lbs.

(638 mm) (27 kg)

8896-300 3

1

⁄8" Unflg. 0.0 245⁄32" 59 lbs.

(51.5 Ω) (626 mm) (27 kg)
8897-300 3

1

⁄8" Unflg. 0.0 245⁄32" 59 lbs.

(626 mm) (27 kg)

8898-300 3

1

⁄8" Unflg. 0.688 245⁄32" 59 lbs.

(636 mm) (27 kg)

Power Rating: 5000 W continuous

with blower on, 1250 W with
blower off

Frequency Range and VSWR:

DC to 1 GHz at 1.1 max.
1 to 2 GHz at 1.25 max.
2 to 2.4 GHz at 1.3 max.

Impedance: 50 ohms nominal

(8896-300 51.5 ohms nominal)

Ambient Temperature Range:

–40˚C to +45˚C

Load Coolant: 2.9 gal. (11 liters)

silicone oil

Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: 73⁄8" W × 2211⁄16" H

(187 mm

× 560 mm). See table

for length.

Blower AC Power:

5 kW 8890-300 SERIES WITH BA-300-115, -230

RECESS OVERALL

MODEL CONNECTOR

(IN.) LENGTH

WEIGHT

8890-300 QC-LC(F) — 231⁄8" 70 lbs.
with BA-300*** (587 mm) (32 kg)

8892-300 1

5

⁄8" EIA Flg. 0.625 231⁄8" 72 lbs.

with BA-300*** (587 mm) (33 kg)
8895-300 1

5

⁄8" Unflg. 0.438 223⁄16" 72 lbs.

with BA-300*** (564 mm) (33 kg)
8891-300 3

1

⁄8" EIA Flg. 0.922 251⁄8" 73 lbs.

with BA-300*** (638 mm) (33 kg)
8896-300 3

1

⁄8" Unflg. 0.0 245⁄32" 73 lbs.

with BA-300*** (614 mm) (33 kg)
8897-300 3

1

⁄8" Unflg. 0.0 245⁄32" 73 lbs.

with BA-300*** (614 mm) (33 kg)
8898-300 3

1

⁄8" Unflg. 0.688 245⁄32" 73 lbs.

with BA-300*** (614 mm) (33 kg)

Model BA-300-115: 115 Vac, 50/60 Hz, 0.6 A
Model BA-300-230: 230 Vac, 50/60 Hz, 0.3 A

Bird oil-dielectric load resistors have never been and are not now manufactured with
Poly Chlorinated Biphenyls (PCBs).

48

E-mail: [email protected] • Internet: www.bird-electronic.com

TERMALINE

®

RF COAXIAL TERMINATIONS

Oil-Dielectric, Direct Water-Cooled Loads

5 kW OIL DIELECTRIC 8921 SERIES

Power Rating: 5000 W continuous
Frequency Range and VSWR:

DC to 1 GHz at 1.1 max.

Ambient Temperature Range: –40˚C to +45˚C
Load Coolant: 62⁄3gals. (25.3 liters)

silicone oil

Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: 91⁄2" W × 2513⁄16" H

(241 mm

× 656 mm). See table for length.

NOTE: An 8890-008 over-temperature interlock safety switch is included.

OVERALL

MODEL CONNECTOR

LENGTH

WEIGHT

8921 QC-LC(F) 3027⁄32" 119 lbs.

(783 mm) (54 kg)

8922 1

5

⁄8" EIA flg. 3027⁄32" 121 lbs.

(783 mm) (55 kg)

8926 3

1

⁄8" EIA flg. 323⁄4" 126.5 lbs.

(832 mm) (57 kg)

8927 3

1

⁄8" Unflg. 317⁄8" 126 lbs.

(809 mm) (57 kg)

10 kW OIL DIELECTRIC 8931–115, –230 SERIES

Power Rating: 10 kW continuous
Frequency Range: and VSWR:

DC to 400 MHz at 1.15 max.
400 MHz to 1 GHz at 1.20 max.

Ambient Temperature Range: –40˚C to +45˚C
Load Coolant: 62⁄3gals. (25.3 liters)

silicone oil

Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: 91⁄2" W × 335⁄16" H

(241 mm

× 821 mm). See table for length.

NOTE: Both an 8892-333 blower control switch and an 8890-017 over-temperature interlock safety switch
are included.
*** AC power 115 or 230 Vac, 50/60 Hz (add suffix –115 or –230 to Model number)

OVERALL

MODEL CONNECTOR

LENGTH

WEIGHT

8931-*** QC-LC(F) 307⁄32" 135 lbs.

(768 mm) (61 kg)

8932-*** 1

5

⁄8" EIA flg. 307⁄32" 137 lbs.

(768 mm) (62 kg)

8936-*** 3

1

⁄8" EIA flg. 321⁄8" 142.5 lbs.

(816 mm) (64.8 kg)

8937-*** 3

1

⁄8" Unflg. 311⁄4" 142 lbs.

(793 mm) (64.5 kg)

1 kW DIRECT WATER COOLED 8710 SERIES

Power Rating: 1000 W continuous
Frequency Range and VSWR:

DC to 1 GHz at 1.10 max.
1 to 3 GHz at 1.3 max.
3 to 3.5 GHz at 1.35 max.

Water Temperature Range:

+

8˚C to +80˚C

Water Flow Rate: 1 quart/minute @ 8°C to

3qpm @ 80°C (0.95 liters/minute @ 8°C
to 2.84 lpm @ 80°C )

Connectors: Waterlines 1⁄8" FPT

Model 8710F (N Female)
Model 8710M (N Male)
Model 8711F (C Female)
Model 8711M (C Male)
Model 8713

7

⁄8" EIA Flg.

Load Coolant: Potable water
Operating Position: Any
Finish: Silver plated
Nominal Size: (excl. 18" waterlines)

3

21

⁄32" ×11⁄16" Dia., (93 mm × 17 mm)

Weight: Models 8710, 8711 5 oz. (142 g),

Model 8713 14 oz. (397 g)

MODEL 8711 (LEFT)
MODEL 8710 (RIGHT)

Bird oil-dielectric load resistors have never been and are not now manufactured with
Poly Chlorinated Biphenyls (PCBs).

49

Phone: [phone] • Fax: [phone]

TERMALINE

®

RF COAXIAL TERMINATIONS

Direct Water-Cooled Loads

5 kW DIRECT WATER COOLED MODELS 8720, 8726

Power Rating: 5 kW continuous
Frequency Range and VSWR:

Model 8720: DC to 500 MHz 1.1 max.,
500 to 900 MHz 1.15 max.,
900 to 2000 MHz 1.25 max.
Model 8726: DC to 500 MHz 1.1 max.,
500 to 2000 MHz 1.25 max.

Water Temperature Range:

+

5˚C to +80˚C

Water Flow Rate: 1 gal./minute @ 5°C to

4gpm @ 80°C (3.8 liters/minute @ 5°C to

15.21 lpm @ 80°C)

Connectors: Waterlines 1⁄2" FPT (8720) or

3

⁄4" hose (8726)

Model 8720 1

5

⁄8" EIA Flg.
Model 8726 QC type
(Female LC normally supplied)

Load Coolant: Potable water
Operating Position: Any
Finish: Bright nickel plated
Nominal Size: (excl. 8" waterlines)

Model 8720, 8

1

⁄32" × 15⁄8" Dia.,

(204 mm

× 41 mm). Input Flg. 31⁄2" Dia.

Model 8726, 8

7

⁄8" × 15⁄8" Dia.,

(225

× 41 mm)

Weight: Model 8720: 2 lbs. (900 g)

Model 8726: 2

1

⁄2lbs. (1.1 kg)

10 kW ECONOLOAD

®

MODELS 8730A, 8731, 8738A

Power Rating: 10 kW continuous
Frequency Range and VSWR:

Model 8731,

1.1 max. 1 kHz to 1 GHz
(DC for continuity checks)
Models 8730A and 8738A, 1.1 max.
DC to 1 GHz

Water Temperature Range:

+

5˚C to +60˚C

Water Flow Rate: 4 gals./minute @ 5°C to

6 gpm @60°C (15.2 liters/minute @ 5°C
to 22.8 lpm @ 60°C)

Connectors: Waterlines 1⁄2" FPT or 3⁄4" hose

Model 8730A, 1

5

⁄8" EIA Flg.

Model 8731, 3

1

⁄8" EIA Flg.

Model 8738A, 3

1

⁄8" Unflg. (Flush)

Load Coolant: Potable water
Operating Position: Any
Finish: Black powder coat
Nominal Size: 143⁄4" × 23⁄4" Dia.,

(375 mm

× 70 mm). Input Flg.

Model 8730, 3

1

⁄2" Dia., (89 mm),

Model 8731, 5

3

⁄16" Dia., (132 mm)

Weight: Model 8730 7 lbs. 14 oz. (3.6 kg),

Model 8731 6 lbs. 10 oz. (3 kg),
8738 6 lbs. (2.8 kg)

MODEL 8720 (top)
MODEL 8726 (bottom)

20 kW ECONOLOAD

®

MODELS 8745, 8746

Power Rating: 20 kW continuous
Frequency Range and VSWR: 1.1 max. 1 kHz

to 900 MHz (DC for continuity checks)

Water Temperature Range:

+

5˚C to +60˚

Water Flow Rate: 6 gal./minute @ 5°C to

8 gpm @ 60°C (22.8 liters/minute @ 5°C
to 30.4 lpm @ 60°C)

Connector: Waterlines 1⁄2" FPT or 3⁄4" hose

Model 8745 3

1

⁄8" EIA Flg.

Model 8746 3

1

⁄8" Unflg. (Flush)

Load Coolant: Potable water
Operating Position: Any
Finish: Black powder coat
Nominal Size: 191⁄2" × 31⁄2" Dia.,

(495 mm

× 90 mm),

Input Flg. 5

3

⁄16" Dia. (132 mm)

Weight: Model 8745 15 lbs. 13 oz. (7.2 kg),

Model 8746 15 lbs. 5 oz. (7.0 kg)

30 kW ECONOLOAD

®

MODELS 8755, 8756

Power Rating: 30 kW continuous
Frequency Range and VSWR: 1.1 max. 1 kHz

to 900 MHz (DC for continuity checks)

Water Temperature Range:

+

5˚C to +60˚C

Water Flow Rate: 7 gal./minute @ 5°C to 9

gal./minute @ 60°C (26.6 liters/minute @
5°C to 34.2 lpm @ 60°C)

Connectors: Waterlines 1⁄2" FPT or 3⁄4" hose

Model 8755 3

1

⁄8" EIA Flg.

Model 8756 3

1

⁄8" Unflg. (Flush)

Load Coolant: Potable water
Operating Position: Any
Finish: Black powder coat
Nominal Size: 191⁄2" x 31⁄2" Dia.,

(495 mm

× 90 mm).

Input Flg. 5

3

⁄16" Dia. (132 mm)

Weight: Model 8755 15 lbs. 13 oz. (7.2 kg),

Model 8756 15 lbs. 5 oz. (7.0 kg)

See page 53 for load accessories such as coupling kits, dollies, etc.

50

E-mail: [email protected] • Internet: www.bird-electronic.com

TERMALINE

®

RF COAXIAL TERMINATIONS

Direct Water-Cooled Loads, MODULOAD®Systems

40 kW ECONOLOAD

®

MODELS 8765, 8766

Power Rating: 40 kW continuous
Frequency Range and VSWR: 1.1 max. 1 kHz

to 900 MHz (DC for continuity checks)

Water Temperature Range:

+

5˚C to +60˚C

Water Flow Rate: 8 gals./minute @ 5°C to

10 gpm @ 60 °C (30.4 liters/minute @
5°C to 3.8 lpm @ 60°C)

Connectors: Waterlines 1⁄2" FPT or 3⁄4" hose

Model 8765 3

1

⁄8" EIA Flg.

Model 8766 3

1

⁄8" Unflg. (Flush)

Load Coolant: Potable water
Operating Position: Any
Finish: Black powder coat
Nominal Size: 191⁄2" × 31⁄2" Dia.,

(495 mm

× 90 mm),

Input Flg. 5

13

⁄16" Dia. (132 mm)

Weight: Model 8765 15 lbs. 13 oz. (7.2 kg),

Model 8766 15 lbs. 5 oz. (7.0 kg)

50 kW ECONOLOAD

®

MODELS 8775, 8776

Power Rating: 50 kW continuous
Frequency Range and VSWR: 1.1 max. 1 kHz

to 900 MHz (DC for continuity checks)

Water Temperature Range:

+

5˚C to +60˚C

Water Flow Rate: 9 gals./minute @ 5°C to

11 gpm @ 60°C (34.2 liters/minute @
5°C to 41.8 lpm @ 60°C)

Connectors: Waterlines 1⁄2" FPT or 3⁄4" hose

Model 8775 3

1

⁄8" EIA Flg.

Model 8776 3

1

⁄8" Unflg. (Flush)

Load Coolant: Potable water
Operating Position: Any
Finish: Black powder coat
Nominal Size: 191⁄2" × 31⁄2" Dia.,

(495 mm

× 90 mm),

Input Flg. 5

3

⁄16" Dia., (132 mm)

Weight: Model 8775 15 lbs. 13 oz. (7.2 kg),

Model 8776 15 lbs. 5 oz. (7.0 kg)

80 kW ECONOLOAD

®

MODEL 8792

Power Rating: 80 kW continuous
Frequency Range and VSWR: 1.15 max. 1 kHz

to 800 MHz (DC for continuity checks)

Water Temperature Range:

+

5˚C to +60˚C

Water Flow Rate: 9 gals./minute @ 5°C to

12 gpm @ 60°C (34.2 liters/minute @ 5˚C
to 45.6 lpm @ 60°C

Connector: 61⁄8" EIA Flg.
Load Coolant: Potable water

Operating Position: Any
Finish: Black powder coat
Nominal Size: 34" × 5" Dia.

(864 mm

× 127 mm),

Input Flg. 8

1

⁄8" Dia., (206 mm) add

approximately 1

1

⁄4" (32 mm) to length

for rear water fitting

Weight: 30 lbs. 10 oz. (14 kg)

10 kW MODULOAD

®

MODELS 8631, 8635, 8638

Power Rating: 10 kW continuous
Frequency Range and VSWR: 1.1 max. 1 kHz

to 1000 MHz (DC for continuity checks)

Ambient Temperature Range: (per power

level and coolant mix)
≤10 kW: (35% Ethylene Glycol/65%

Water) +5°C to +45°C

≤10 kW: (35% Ethylene Glycol/65%

Water) –20°C to +35°C

Connector: 8635: 15⁄8" EIA Flg.

8631: 3

1

⁄8" EIA FIg. 8638: 31⁄8" Unflg.

Load Coolant: 10 pts. (4.75 liters) 100% water

or 65% water/35% industrial Ethylene
Glycol. With forced-air cooling

Operation Position: Horizontal only
Finish: Gray powder coat

Nominal Size: (excluding connectors)

22

1

⁄8" L × 1515⁄16" W × 1513⁄16" D,

(562 mm

× 405 mm x 402 mm)

Weight: 110 lbs. (50 kg)
AC Power: 115 V models: 91⁄2A nominal @

115V ±10% 60Hz

230 V models: 4

3

⁄4A nominal @

230V ±10% 50Hz

Optional Dolly: P/N 6771-011

51

Power

115 V 50 Hz
115 V 60 Hz
230 V 50 Hz
230 V 60 Hz

Basic P.N.

8631,8635,

or 8638

Add Suffix

-115-5

-115

-230

-230-6

Phone: [phone] • Fax: [phone]

TERMALINE

®

RF COAXIAL TERMINATIONS

MODULOAD®Systems and Dry, Forced-Air Loads

50 kW MODULOAD®MODELS 8655, 8656

Power Rating: 50 kW continuous
Frequency Range and VSWR: 1.1 max. 1 kHz

to 900 MHz (DC for continuity checks)

Ambient Temperature Range: (per power

level and coolant mix)
≥40 kW: (100% Water) +5°C to +30°C.
<40 kW: (100% Water) +5°C to +45°C.
≥40 kW: (35% Ethylene Glycol/65%

Water) –20°C to +25°C;

<40 kW: (35% Ethylene Glycol/65%

Water) –20°C to +35°C

Connector: 8655: 31⁄8" EIA Flg.

8656: 3

1

⁄8" Unflg. (Flush)

Load Coolant: 17 qts. (16.1 liters) 100%

water or 65% water/35% industrial
ethylene glycol. With forced-air cooling

Operation Position: Horizontal only
Finish: Gray powder coat

Nominal Size: (excluding connectors)

46

1

⁄2" L × 195⁄32" W × 199⁄16" D,

(659 mm

× 487 mm × 497 mm)

Weight: 275 lbs. (125 kg)
AC Power:

115 V models: 14 A nominal @

115 V ±10% 60 Hz

230 V models: 7 A nominal @

230 V ±10% 50 Hz

Optional Dolly: Model 6772-011 on page 53

8655-115-6, 8656-115–6 for 60 Hz
8655-230-5, 8656-230–5 for 50 Hz

10 kW, 15 kW DRY, FORCED-AIR LOAD

MODEL 8578A100
MODEL 8578A150

Power Rating:

Model 8578A100: 10 kW continuous
Model 8578A150: 15 kW continuous

Frequency Range and VSWR:

1.15:1, DC to 108 MHz

Ambient Temperature Range: –40°C to +40°C
Connector: 15⁄8" EIA Flanged (Swivel)

3

1

⁄8" Unflanged option

Load Coolant: Dry (forced air)
Resistors: Tubular type, parallel connection,

50 ohms nominal

Operation Position: Any (except blockage

of air inlets and exhaust)

Finish: Gray powder coat
Nominal Size: (including connectors)

39

7

⁄32" H × 1615⁄32" W × 137⁄16" D,

(996 mm

× 418 mm × 341 mm)

Weight: 70 lbs. (31.8 kg)
AC Power:

115/230 ±10% Vac, 50/60 Hz 8.6 amps max.

@ 115 Vac

See page 53 for load accessories such as coupling kits, dollies, etc.

52

25 kW MODULOAD

®

MODELS 8645, 8646

Power Rating: 25 kW continuous
Frequency Range and VSWR: 1.1 max. 1 kHz

to 900 MHz (DC for continuity checks)

Ambient Temperature Range: (per power

level and coolant mix)

≤25 kW: (100% Water) +5°C to +30°C.
<20 kW: (100% Water) +5°C to +45°C.
≤25 kW: (35% Ethylene Glycol/65%

Water) –20°C to +25°C;

<20 kW: (35% Ethylene Glycol/65%

Water) –20°C to +35°C

Connector: 8645: 31⁄8" EIA Flg. 8646: 31⁄8" Unflg.
Load Coolant: 9 qts. (8.5 liters) 100% water

or 65% water/35% industrial Ethylene
Glycol. With forced-air cooling

Operation Position: Horizontal only
Finish: Gray powder coat

Nominal Size: (excluding connectors)

25

15

⁄16" L × 195⁄32" W × 199⁄16" D,

(659 mm

× 487 mm × 497 mm)

Weight: 155 lbs. (70 kg)
AC Power: 115 V models: 11 A nominal @

115V ±10% 60Hz

230 V models: 5

1

⁄2A nominal @

230V ±10% 50Hz

Optional Dolly: P/N 6771-011

Power

115 V 50 Hz
115 V 60 Hz
230 V 50 Hz
230 V 60 Hz

Basic P.N.

8645 or

8646

Add Suffix

-115-5

-115

-230

-230-6

Power

115 V 50 Hz
115 V 60 Hz
230 V 50 Hz
230 V 60 Hz

Basic P.N.

8655 or

8656

Add Suffix

-115-5

-115-6

-230-5

-230-6

E-mail: [email protected] • Internet: www.bird-electronic.com

TERMALINE

®

RF COAXIAL TERMINATIONS

25 kW Dry, Forced-Air Load and Termination Accessories

A 6770-125
B 8755-027-4
C 8890-008
D 4600-020
E 5-289
F 4902-025
G 4600-025

MODEL DESCRIPTION

6771-011 For 10 and 25 kW MODULOAD

®

6772-011 For 50 kW MODULOAD

®

****-677-1 For ECONOLOAD®, 115 Vac
****-677-2 For ECONOLOAD

®

, 230 Vac

DOLLIES

MODEL DESCRIPTION

4600-025 31⁄8" Flg. to 15⁄8" EIA Flg. 50 ohms
4712-015 1

5

⁄8" Flg. to 7⁄8" EIA Flg. 50 ohms

4902-025 3

1

⁄8" Flg. to 61⁄8" EIA Flg. 50 ohms

7500-076 DC Connector Plug

FLANGE-TO-FLANGE ADAPTERS

**** Add -677-1 or -677-2 to any ECONLOAD

®

Model No. (10 kW to 80 kW) to get it mounted
on a dolly with a control box, water flow switch
and bracket (for an optional wattmeter).
8776-677-1 shown. –1 = 115 Vac 50/60 Hz,
–2 = 230 Vac 50/60 Hz.

* 51.5 ohm with adapter to 50 ohm

MODEL LINE TYPE OHMS

4240-220

7

⁄8" Flg. 50

4712-020 1

5

⁄8" Flg. 50

4600-020 3

1

⁄8" Flg. 50

5-289 3

1

⁄8" Unflg. 51.5*

5-726 3

1

⁄8" Unflg. 50

4902-020 6

1

⁄8" Flg. 50

5-1322 6

1

⁄8" Unflg. 50

COUPLING KITS

MODEL PRODUCT POWER

6770-120 Wall Mounting Bracket 10 kW
6770-130 Wall Mounting Bracket 80 kW
6770-125 Wall Mounting Bracket 20 kW, 30 kW
6770-125 Wall Mounting Bracket 40 kW, 50 kW
5-898-6 Water Flow Switch 10 kW
5-898-2 Water Flow Switch 20 kW
5-898-3 Water Flow Switch 30 kW
5-898-4 Water Flow Switch 40 kW, 50 kW
5-898-7 Water Flow Switch 80 kW
8750-115 Control Box Assembly 115 Vac, 50/60 Hz
8750-230 Control Box Assembly 230 Vac, 50/60 Hz

WATER-COOLED
LOAD ACCESSORIES

MODEL FOR POWER

8731-031-1 8731 ECONOLOADS®10 kW
8738A072 8730A/8738A ECONOLOADS

®

10 kW

8755-027-2 8745/8746 ECONOLOADS

®

20 kW

8755-027-3 8755/8756 ECONOLOADS

®

30 kW

8755-027-4 8765/8766 ECONOLOADS

®

40 kW

8755-027-5 8775/8776 ECONOLOADS

®

50 kW

8792-010-2 one reqd. 8796 ECONOLOADS

®

60 kW

8792-010-1 one reqd. 8792 ECONOLOADS

®

80 kW
5A2388 8578A100 Forced-Air Load 10 kW
5A2393 8578A150 Forced-Air Load 15 kW
8572-021 8572 Forced-Air Loads 25 kW

REPLACEMENT RESISTORS

MODEL DESCRIPTION VOLUME/PKG.

5-030-3 Refined Mineral Oil 1 Gallon Can
5-1070-2 DC-200 Silicone 1 Gallon Can
5-1134-3 Ethylene Glycol, 1 Gallon Can

Industrial Grade

COOLANTS

TEMP. USE

MODEL FUNCTION

SET POINT WITH

8630-013 Over Temp. Opens @ 86˚C 8630

Interlock Series

8640-066 Over Temp. Opens @ 77˚C 8640/8650

Interlock Series

8890-008 Over Temp. Opens @ 236˚C 8890/8920

Interlock Series

8892-333 Blower Closes @ 60˚C 8930

Series

8890-017 Over Temp. Opens @ 226˚C 8930

Interlock Series

8896-012 Automatic Closes @ 100˚C BA-300-115,

-230

THERMOSWITCHES
FOR AIR-COOLED LOADS

A

B

C

D

E

G

F

25 kW DRY, FORCED-AIR LOADS

MODELS 8572A/

73A-115-6, -230-5

Power Rating: 25 kW continuous
Frequency Range and VSWR: 1.1 max. DC to

110 MHz

Ambient Temperature Range: –40˚C to +45˚C
Connector:

8572A: 31⁄8" EIA Flg.
8573A: 3

1

⁄8" Unflg. (Flush)

Load Coolant: Dry. Forced-air cooled
Resistors: 20 tubular type, series/parallel
Operating Position: Any

Finish: Gray powder coat and black

powder coat

Nominal Size: (includes connectors)

70

3

⁄4" H x 161⁄4" W x 161⁄4" D

(1797 mm x 413 mm x 413 mm)

Weight: 118 lbs. (54 kg)
AC Power: 115 V 60 Hz add suffix -115-6,

230 V 50 Hz add –230 –5 to Model
Number. Uses 1150 W

Optional Hot Air Duct: Model 8572-078

53

54

Phone: [phone] • Fax: [phone]

TENULINE

®

RF COAXIAL ATTENUATORS

Product Selection Guide, 2-Watt SMA Attenuator

This catalog presents a wide selection of our new bi-direc­tional TENULINE

®

Attenuators that handle power from
2 to 300 watts and give you an expanded choice of attenu­ation value and connector options. These new dry models
and our established oil-cooled models now span 2 watts/
1 dB to 4000 watts/30 dB. Intermediate or higher attenuation
values can be achieved by linking these devices; for example,
adding a 5 watt/10 dB attenuator to the output of a 4000
watts/30 dB attenuator results in a 4000 watts/40 dB Model.
Or you can request custom attenuation values

Before Bird's TENULINE

®

Series in the late 1950s, common
tasks like signal analysis and frequency checks required
directional couplers that have several drawbacks a well
designed attenuator can overcome.

■

Directional couplers only maintain a stable coupling
factor over a relatively narrow frequency range. Up

to four couplers, versus one Bird high-power attenuator,
are needed to cover 30 to 500 MHz. And the attenuation
curve of one resistive device is more uniform than that
of four resonant reactive devices.

■

A Bird 30 dB high-power attenuator is actually a proper
transmitter termination with 99.9 percent of the power
being dissipated within it. An attenuator is not a recom­mended load substitute, however, for continuous-duty
applications.

■

You can easily verify the accuracy of a Bird high-power
attenuator @ 60 Hz or with DC and Wheatstone bridge
measurements.

The following Model Number Definition lets you specify
your desired connector when ordering the new bi-directional
attenuators presented on pages 54–57.

Attenuation Value in dB

01 – 1 dB 10 – 10 dB
02 – 2 dB 20 – 20 dB
03 – 3 dB 30 – 30 dB
06 – 6 dB

* Attenuator Model Number Definition: 100 – A – GGC – XX

Power Rating (watts)

Product Type

A - Attenuator

Connector Gender

MF - Male/Female
FF - Female/Female

Connectors

+

B - BNC
N - N
T - TNC
E - IEC 7/16

+

Call for other connector options.

AVERAGE NOMINAL FREQUENCY MAX. DIELECTRIC SEE

MODEL

POWER (W) RANGE (GHz)

ATTENUATION (dB)** BIDIRECTIONAL

VSWR MEDIUM

CONNECTOR(S)

PAGE

2-A-MFA-XX 2 DC-4 1, 2, 3, 6, 10, 20, 30 Yes 1.25 Air SMA 54
2-A SERIES 2 DC-4 1, 2, 3, 6, 10, 20, 30 Yes 1.25 Air BNC, N, TNC 55
5-A SERIES 5 DC-4 1, 2, 3, 6, 10, 20, 30 Yes 1.25 Air BNC, N, TNC 55
10-A SERIES 10 DC-4 1, 2, 3, 6, 10, 20, 30 Yes 1.25 Air BNC, N, TNC 55
25-A SERIES 25 DC-4 1, 2, 3, 6, 10, 20, 30 Yes 1.25 Air BNC, N, TNC 55
8341 40 DC-1 3, 6, 10, 20 No 1.25† Air (Req. Heatsink) QC-N (F) 55
50-A SERIES 50 DC-2.4 1, 2, 3, 6, 10, 20, 30 Yes 1.25 Air BNC, N, TNC 56
75-A SERIES 75 DC-2.4 1, 2, 3, 6, 10, 20, 30 Yes 1.25 Air BNC, N, TNC 56
100-A SERIES 100 DC-2.4 1, 2, 3, 6, 10, 20, 30 Yes 1.25 Air BNC, N, TNC 56
8343 100 DC-1 3, 6, 10, 20 No 1.25† Air QC-N (F) 56
8323 100 DC-0.5 30 No 1.1 Oil QC-N (F) 57
150-A SERIES 150 DC-2.4 1, 2, 3, 6, 10, 20, 30 Yes 1.25 Air BNC, IEC 7/16, N, TNC 57
8322 200 DC-0.5 30 No 1.1 Oil QC-N (F) 57
300-A SERIES 300 DC-2.4 1, 2, 3, 6, 10, 20, 30 Yes 1.25 Air BNC, IEC 7/16, N, TNC 57
8325 500 DC-0.5 30 No 1.1 Oil QC-N (F) 58
8327-300 1000 DC-0.5 30 No 1.1 Oil QC-LC (F) 58
8329-300 2000 DC-0.5 30 No 1.1 Oil QC-LC (F) 58
8329-300 with BA-300 4000 DC-0.5 30 No 1.1 Oil QC-LC (F) 58

ATTENUATOR SELECTION GUIDE

** Other attenuation values are available on special request. † Varies with frequency and attenuation.
Power Factor Formula for Attenuators: ∆dB = [(2.0 x 10

–6

) (freq. MHz) (power Watts)]. i.e. @ 1000 W and 100 MHz, ∆dB = 0.2

2-WATT BI-DIRECTIONAL, SMA CONNECTOR 2-A-MFA-XX SERIES*

Power Rating: 2 W max. @ 40°C

2.4 W max. @ 25°C

Connectors: SMA (Male and Female)
Frequency Range and VSWR: DC to 1 GHz at

1.10:1 max. 1 GHz to 4 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal
Ambient Temperature Range: –40°C to +40°C
Operating Position: Any
Cooling: Dry (convection cooled)
Finish: Nickel plated
Nominal Size: 1.32" L × 0.42" Dia.,

(33.6 mm × 10.7 mm)

Weight: 0.4 oz. (11.4 g)

ACCURACY

dB Accuracy ± dB “XX”

Atten DC–1 GHz 1–4 GHz Value

1 0.3 0.5 01
2 0.3 0.5 02
3 0.3 0.5 03

6 0.4 0.6 06
10 0.4 0.8 10
20 0.5 1.0 20
30 0.8 1.3 30

E-mail: [email protected] • Internet: www.bird-electronic.com

TENULINE

®

RF COAXIAL ATTENUATORS

Dry Dielectric

Power Rating: 2 W max. @ 40°C

2.4 W max. @ 25°C

Connectors: N, BNC, TNC (Male or Female)
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 4 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal
Ambient Temperature Range: –40°C to +40°C
Operating Position: Any
Coolant: Dry (convection cooled)
Finish: Silver or Tri-alloy plated, except

Nickel plate for BNC

Nominal Size: (with N-type connectors):

23⁄16" L ×13⁄16" Dia., (55.9 mm × 20.4 mm)

2 WATT BI-DIRECTIONAL 2-A SERIES*

Power Rating: 25 W max. @ 40°C

30 W max. @ 25°C

Connectors: N, BNC, TNC (Male or Female)
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 4 GHz at 1.25:1 max.

Accuracy: Same as 2-A Series above.
Impedance: 50 ohms, nominal

25 WATT BI-DIRECTIONAL 25-A SERIES*

Power Rating: 5 W max. @ 40°C

6 W max. @ 25°C

Connectors: N, BNC, TNC (Male or Female)
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 4 GHz at 1.25:1 max.

Accuracy: Same as 2-A Series above.
Impedance: 50 ohms, nominal

5 WATT BI-DIRECTIONAL 5-A SERIES*

Power Rating: 10 W max.@ 40°C

12 W max.@ 25°C

Connectors: N, BNC, TNC (Male or Female)
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 4 GHz at 1.25:1 max.

Accuracy: Same as 2-A Series above.
Impedance: 50 ohms, nominal

10 WATT BI-DIRECTIONAL 10-A SERIES*

Weight: 3.1 oz. (88 g)

Ambient Temperature Range: –40°C to +40°C
Operating Position: Any
Coolant: Dry (convection cooled)
Finish: Silver or Tri-alloy plated, except

Nickel plate for BNC

Nominal Size: (with N-type connectors):

23⁄16" L ×13⁄16" Dia., (55.9 mm × 20.4 mm)

Weight: 3.1 oz. (88 g)

Ambient Temperature Range: –40°C to +40°C
Operating Position: Any
Coolant: Dry (convection cooled)
Finish: Black anodized. Silver or Tri-alloy

plated connectors

Nominal Size: (with N-type connectors):

25⁄8" L × 2.3" Dia., (66.1 mm × 58.5 mm)

Weight: 6.12 oz. (176.7 g)

Ambient Temperature Range: –40°C to +40°C
Operating Position: Any
Coolant: Dry (convection cooled)
Finish: Black anodized. Silver or Tri-alloy

plated connectors

Nominal Size: (with N-type connectors):

55⁄16" L × 2.3" Dia., (134.7 mm × 58.5 mm)

Weight: 13.1 oz. (373.4 g)

40 WATT 8341 SERIES

Power Rating: 40 W continuous when

bolted to a heat sink

Connectors: QC type

(Female N normally supplied)

Frequency Range and Output VSWR:

DC to 1 GHz @ 1.25:1 max.

Impedance: 50 ohms, nominal
Ambient Temperature Range: –40˚C to +45˚C
Heat Sink Required: Aluminum panel

1

⁄8" × 400 sq. in. (3 mm ×1⁄4sq. m),

or equivalent

Coolant: Dry (conduction cooled)
Finish: Black powder coat

Nominal Size: (includes connectors)

3, 6, 20 dB 53⁄16" L (132 mm),
10 dB 411⁄16" L × 15⁄8" H × 11⁄4" D
(119 mm × 41 mm × 32 mm)

Weight: 121⁄2to 15 oz. (350 to 420 g)

ACCURACY

dB Accuracy ± dB and VSWR

Model Atten DC-0.5 GHz 0.5 – 1 GHz

8341-030 3 0.5 dB, 1.20 0.75 dB, 1.25
8341-060 6 0.5 dB, 1.20 0.75 dB, 1.25
8341-100 10 0.5 dB, 1.20 0.75 dB, 1.25
8341-200 20 0.5 dB, 1.20 0.75 dB, 1.25

ACCURACY

dB Accuracy ± dB “XX”

Atten DC-1 GHz 1-4 GHz Value

1 0.3 0.5 01
2 0.3 0.5 02
3 0.3 0.5 03

6 0.4 0.6 06
10 0.4 0.8 10
20 0.5 1.0 20
30 0.8 1.3 30

*See page 54 for a Model Number Definition that instructs you how to order the correct part.

NEW

NEW

55

NEW

NEW

56

Phone: [phone] • Fax: [phone]

TENULINE

®

RF COAXIAL ATTENUATORS

Dry Dielectric

Power Rating: 50 W max. @ 40°C

60 W max. @ 25°C

Connectors: N, BNC, TNC
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 2.4 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal
Ambient Temperature Range: –40°C to +40°C
Operating Position: Any
Coolant: Dry (convection cooled)
Finish: Black Anodized.

Silver or Tri-alloy plated connectors

Nominal Size: (with N-type connectors):

5.3" L

× 2.3" Dia.,

(134.7 mm

× 58.5 mm)

50 WATT BI-DIRECTIONAL 50-A SERIES*

Power Rating: 100 W max. @ 40°C

120 W max. @ 25°C

Connectors: N, BNC, TNC, IEC 7/16
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 2.4 GHz at 1.25:1 max.

Accuracy: Same as 50-A Series above.
Impedance: 50 ohms, nominal
Ambient Temperature Range: –40°C to +40°C

100 WATT BI-DIRECTIONAL 100-A SERIES*

Weight: 1.25 lbs. (0.57 kg)

Operating Position: Vertical
Coolant: Dry (convection cooled)
Finish: Black semigloss paint per federal

standard 595. Silver or Tri-alloy
plated connectors

Nominal Size: (with N-type connectors):

6.4" H

× 2.6" W × 6.8" D,

(162.6 mm

× 66.1 mm × 172.8 mm)

Weight: 4.3 lbs. (1.95 kg)

Power Range: 100 W continuous
Frequency Range: DC to 1000 MHz
Output: VSWR 1.25
Ambient Temperature Range: –40˚C to +45˚C
Connectors: QC type

(Female N normally supplied)

Coolant: Dry (convection air cooled)
Finish: Black powder coat
Nominal Size: (includes connectors)

7

23

⁄32" × 23⁄4" sq. (196 mm × 70 mm)

100 WATT 8343 SERIES

Weight: 44 oz. (1.25 g)

ACCURACY

dB Accuracy ± dB “XX”

Atten DC–1 GHz 1–2.4 GHz Value

1 0.3 0.5 01
2 0.3 0.5 02
3 0.3 0.5 03

6 0.4 0.6 06
10 0.4 0.8 10
20 0.5 1.0 20
30 0.8 1.3 30

Power Rating: 75 W max. @ 40°C

90 W max. @ 25°C

Connectors: N, BNC, TNC
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 2.4 GHz at 1.25:1 max.

Accuracy: Same as 50-A Series above.
Impedance: 50 ohms, nominal
Ambient Temperature Range: –40°C to +40°C

75 WATT BI-DIRECTIONAL 75-A SERIES*

Operating Position: Vertical
Coolant: Dry (convection cooled)
Finish: Black Anodized.

Silver or Tri-alloy plated connectors

Nominal Size: (with N-type connectors):

7.3" H

× 2.3" Dia., (185.5 mm × 58.5 mm)

Weight: 1.6 lbs. (0.73 kg)

ACCURACY

dB Accuracy ± dB and VSWR

Model Atten DC–0.5 GHz 0.5–1 GHz

8343-030 3 0.5 dB, 1.20 0.9 dB, 1.25
8343-060 6 0.5 dB, 1.20 0.9 dB, 1.25
8343-100 10 0.5 dB, 1.15 0.9 dB, 1.20
8343-200 20 0.5 dB, 1.15 0.9 dB, 1.20

*See page 54 for a Model Number Definition that instructs you how to order the correct part.

E-mail: [email protected] • Internet: www.bird-electronic.com

100 WATT MODEL 8323

Power Rating: 100 W continuous
Frequency Range and VSWR:

Input 1.1 max. DC to 500 MHz

Attenuation: 30 dB
Accuracy: ±0.5 dB (Calibration data supplied

for 30, 100, 200, 300, 400, and 500 MHz
which is accurate to ±0.2dB)

Ambient Temperature Range: –40˚C to +45˚C
Connectors: QC type

(Female N normally supplied)

Coolant: 0.35 gal. (1.3 liters) refined mineral oil
Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: (includes connectors)

1011⁄32" L × 81⁄2" H × 515⁄16" W
(263 mm × 216 mm × 151 mm)

Weight: 11 lbs. (5 kg)

150 WATT BI-DIRECTIONAL 150-A SERIES*

Power Rating: 150 W max. @ 40°C

180 W max. @ 25°C

Connectors: N, TNC, BNC, IEC 7/16
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 2.4 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal
Ambient Temperature Range: –40°C to +40°C
Operating Position: Vertical
Cooling: Dry (convection cooled)
Finish: Black semigloss paint per federal

standard 595. Silver or Tri-alloy plated
connectors

Nominal Size: (with N connectors)

1115⁄16" H × 25⁄8" W × 613⁄16" D,
(302 mm × 66 mm × 173 mm)

Weight: 6.5 lb (2.95 kg)

ACCURACY

dB Accuracy ± dB ”XX”

Atten DC–1 GHz 1–2.4 GHz Value

1 0.3 0.5 01
2 0.3 0.5 02
3 0.3 0.5 03

6 0.4 0.6 06
10 0.4 0.8 10
20 0.5 1.0 20
30 0.8 1.3 30

200 WATT MODEL 8322

Power Rating: 200 W continuous
Frequency Range and VSWR:

1.1 max. DC to 500 MHz

Attenuation: 30 dB
Accuracy: ±0.5 dB (Calibration data supplied

for 30, 100, 200, 300, 400, and 500 MHz
which is accurate to ±0.2dB)

Ambient Temperature Range: 40˚C to +45˚C
Connectors: QC type

(Female N normally supplied)

Coolant: 0.7 gal. (2.65 liters) refined mineral oil
Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: (includes connectors)

171⁄2" L × 81⁄2" H × 515⁄16" W
(445 mm × 216 mm × 151 mm)

Weight: 19 lbs. (9 kg)

300 WATT BI-DIRECTIONAL 300-A SERIES*

Power Rating: 300 W max. @ 40°C

360 W max. @ 25°C

Connectors: N, TNC, BNC, IEC 7/16
Frequency Range and VSWR:

DC to 1 GHz at 1.10:1 max.
1 GHz to 2.4 GHz at 1.25:1 max.

Impedance: 50 ohms, nominal
Ambient Temperature Range: –40°C to +40°C
Operating Position: Vertical
Cooling: Dry (convection cooled)
Finish: Black semigloss paint per federal

standard 595. Silver or Tri-alloy plated
connectors

Nominal Size: (with N connectors)

1015⁄16" H × 513⁄32" W × 613⁄16" D,
(276.9 mm × 137.2 mm × 172.8 mm)

Weight: 12 lb (5.45 kg)

ACCURACY

dB Accuracy ± dB “XX”

Atten DC–1 GHz 1–2.4 GHz Value

1 0.3 0.5 01

2 0.3 0.5 02

3 0.3 0.5 03

6 0.4 0.6 06
10 0.4 0.8 10
20 0.5 1.0 20
30 0.8 1.3 30

*See page 54 for a Model Number Definition that instructs you how to order the correct part.

Other attenuation values are available on special request.

TENULINE

®

RF COAXIAL ATTENUATORS

Dry and Oil Dielectric

57

Phone: [phone] • Fax: [phone]

TENULINE

®

RF COAXIAL ATTENUATORS

Oil-Cooled Dielectric

500 WATT MODEL 8325

Power Rating: 500 W continuous
Frequency Range and VSWR:

Input 1.1 max. DC to 500 MHz

Attenuation: 30 dB
Accuracy: ±0.5 dB (Calibration data supplied

for 30, 100, 200, 300, 400, and 500 MHz
which is accurate to ±0.2dB)

Ambient Temperature Range: –40˚C to +45˚C
Connectors: QC type

(Female N normally supplied)

Coolant: 0.9 gals. (3.4 liters) refined mineral oil
Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: (including connectors)

17

1

⁄2" L × 81⁄2" H × 55⁄16" W

(445 mm

× 216 mm × 151 mm)

Weight: 25 lbs. (11 kg)

1 kW MODEL 8327-300

Power Rating: 1000 W continuous
Frequency Range and VSWR:

Input 1.1 max. DC to 500 MHz

Attenuation: 30 dB
Accuracy: ±0.5 dB (Calibration data supplied

for 30, 100, 200, 300, 400, and 500 MHz
which is accurate to ±0.2dB)

Ambient Temperature Range: –40˚C to +45˚C
Connectors: QC type (Female LC input,

Female N output normally supplied,
extra Female N supplied)

Coolant: 2.9 gals. (11 liters) refined mineral oil
Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: (including connectors)

23

15

⁄32" L × 173⁄16" H × 71⁄8" W

(596 mm

× 437 mm × 181 mm)

Weight: 57 lbs. (26 kg)
Note: Overload thermoswitch P/N 2450-056

is optional

Bird oil dielectric attenuators have never been and are not now manufactured with Poly Chlorinated
Biphenyls (PCBs).

2 kW MODEL 8329-300

Power Rating: 2000 W continuous
Frequency Range and VSWR:

Input 1.1 max. DC to 500 MHz

Attenuation: 30 dB
Accuracy: ±0.5 dB (Calibration data supplied

for 30, 100, 200, 300, 400, and 500 MHz
which is accurate to ±0.2dB)

Ambient Temperature Range: –40˚C to +45˚C
Connectors: QC type (Female LC input,

Female N output normally supplied)

Coolant: 2.9 gals. (11 liters) silicon oil
Operating Position: Horizontal only
Finish: Gray powder coat
Nominal Size: (including connectors)

23

15

⁄32" L × 173⁄16" H × 71⁄8" W

(596 mm

× 437 mm × 181 mm)

Weight: 57 lbs. (26 kg)
Note: Overload thermoswitch P/N 8329-028

is optional

4 kW MODEL 8329-300 WITH BA-300-115, -230

Power Rating: 4000 W continuous with

blower on, 1000 W with blower off

Frequency Range and VSWR:

Input 1.1 max. DC to 500 MHz

Attenuation: 30 dB
Accuracy: ±0.5 dB (Calibration data supplied

for 30, 100, 200, 300, 400, and 500 MHz
which is accurate to ±0.2dB)

Ambient Temperature Range: –40˚C to +45˚C
Connectors: QC type (Female LC input,

Female N output normally supplied)

Coolant: 2.9 gals. (11 liters) silicone oil

with forced-air cooling

Operating Position: Horizontal only

Finish: Gray powder coat
Nominal Size: (including connectors)

23

15

⁄32" L × 221⁄16" H × 71⁄8" W

(596 mm

× 560 mm × 181 mm)

Weight: 701⁄2lbs. (32 kg)
Blower AC Power:

Model BA-300-115: 115 V, 50/60 Hz, 0.6 A
Model BA-300-230: 230 V, 50/60 Hz, 0.3A

Note: Overload thermoswitch P/N 8329-028

is optional. When ordered as a package,
attenuator and blower are factory­assembled at no additional charge.

58

E-mail: [email protected] • Internet: www.bird-electronic.com

3

/8

"

DIA

SHAFT 10

3

/8

"

MAX 10

43/8

"

DIA 108

425/32

"

MAX 121

321/32

"

MAX 93

17/8

"

48 Disengaged

111/32

"

34 Engaged

3

/8

"

DIA

SHAFT 10

3

/8

"

MAX 10

33/8

"

DIA 90

41/16

"

MAX 103

321/32

"

MAX 93

17/8

"

48 Disengaged

111/32

"

34 Engaged

A1

A1

B2

A2 B1

A

B

A2

R1

R2

126

5

43

ACCESSORIES

Selector Switches, Directional Couplers

50-OHM COAXIAL SELECTOR SWITCHES 71, 72, 74 SERIES

Useful Frequency Range: DC to 10 GHz
Maximum RF Voltage: 500 volts rms
Attenuation to Unused Channel:

75 dB (cross talk)

Ambient Temperature Range: –60˚C to +65˚C

(–76˚F to +149˚F)

Weight: Varies by model, approx.

2

1

⁄2lbs. (1.1 kg)

MODEL 74 MODEL 72-R MODEL 72-2

Single-circuit Two-circuit Two-circuit

six position reversing switch two position

Models 74/72-2 mounting dimensions

7

⁄32" (6 mm) mtg holes

for four 10-32 screws spaced at 90˚ on 15⁄16" (33 mm) radius

Models 72-R mounting dimensions

7

⁄32" (6 mm) mtg holes

for three 10-32 screws spaced at 120 ˚ on 11⁄4" (32 mm) radius

The unique, rugged and reliable design of Bird Coaxwitch®Coaxial Selector
Switches permits positive contact, low-insertion VSWR, and negligible cross talk
between channels. The switching mechanism is 4

1

⁄2" of RG-87/U Teflon cable that
pulls away from the mating Male N connectors and rotates to the desired switch
position. These switches cannot be operated accidentally because operation
requires intentionally sequential movement. The knob must be grasped, pulled out,
rotated, and pushed in to make contact.

Installation: Bird switches may be panel mounted. All connectors are located on
the rear of the housing and are parallel to the shaft of the switch. The connecting
cables may be laced together without the use of right-angle adapters.

FREQUENCY VSWR INSERTION LOSS MAX. RF POWER RATING @ 65˚C

100 MHz negligible 0.02 dB 850 W
1000 MHz 1.06 max. 0.09 dB 200 W
4000 MHz 1.30 max. 0.22 dB 75 W

TYPICAL OPERATING VALUES

MODEL 7422 7441 7431 74 718 7181 72-2 72-R

Positions 2 3 4 6 8 10 2 reversing
Coaxial Circuits 1 1 1 1 1 1 2 2

SWITCHING CONFIGURATIONS

59

Phone: [phone] • Fax: [phone]

60

Many TERMALINE®load resistors, attenuators and absorption wattmeters, as well
as THRULINE

®

wattmeters, employ our patented QC-type ”Quick-Change“ RF
Connectors. These products may be ordered with the connector(s) most convenient
for use with your equipment. Many customers order additional connectors to avoid
using performance robbing adapters. QC Connectors are easily changed in the field
by removing and replacing four screws. Because of the wide variety of connectors
and possible applications, electrical specifications for QC-equipped products are
quoted with the standard connectors normally supplied with the equipment.

ACCESSORIES

QC-Type (Quick-Change),
SQC (Small Quick-Change) Connectors

DESCRIPTION PART NUMBER

Female N 4100-014
Male N 4100-015
Female UHF 4100-017
Female TNC 4100-055
Female BNC 4110-014

SQC Connectors, (used with the
4110 Series, 4304 Wattmeter,
8072-1, 8431 Load Resistors, etc.)
are shown below.

TNC (F)

4240-156

TNC (M)

4240-160

UHF (F)

4240-050

UHF (M)

4240-179

7

⁄8" EIA

4240-002

15⁄8" EIA
Fixed

4240-096

15⁄8" EIA
Swivel

4240-208

IEC 7/16 (Jack)
Type 169-4

4240-344

IEC 7/16 (Plug)
Type 169-4

4240-363

BNC (F)

4240-125

BNC (M)

4240-132

C (F)

4240-100

C (M)

4240-110

HN (F)

4240-268

HN (M)

4240-278

LC (F)

4240-031

LC (M)

4240-025

LT (F)

4240-018

LT (M)

4240-012

Mini-UHF (F)

4240-346

N (F)

4240-062

N (M)

4240-063

Open Term.
#10-32 Nut

4240-080

SC (F)

4240-090

SMA (F)

4240-336

SMA (M)

4240-334

E-mail: [email protected] • Internet: www.bird-electronic.com

61

N(F) N(M) UHF(F) UHF(M) BNC(F) BNC(M) TNC(F)

N(F) •

N(M) • •
UHF(F) • •
UHF(M) • • •

BNC(F) • • • •

BNC(M) • • • • •

TNC(F) • • • • • •

TNC(M) • • • • • • •

ACCESSORIES

Adapters, Batteries, Cables, Connectors, Coupling Kits

ADAPTER KITS 4240 SERIES

Bird‘s adapter kits let you assemble compact, precision 50-ohm adapters to meet up
to 45 different matching requirements. The adapters offer low VSWR because of
precision machining and tight mating tolerances. The N (F)/N (M) combination, for
example, is below 1.05 to 1 GHz and below 1.1 to 2.5 GHz. The Model 4240-400 lets
you create 30 combinations. The Model 4240-401 can fashion 45 combinations. Both
models include enough couplers to assemble 5 complete adapters at the same time.

MODEL 4240-400

N(F) N(M) BNC(F) BNC(M) TNC(F) TNC(M) SMA(F) SMA(M) UHF(F)

N(F)

N(M)

•

BNC(F) • •

BNC(M) • • •

TNC(F) • • • •

TNC(M) • • • • •

SMA(F) • • • • • •

SMA(M) • • • • • • •

UHF(F) • • • • • • • •

UHF(M) • • • • • • • • •

MODEL 4240-401

* WATTMETER GROUPS

Group I: 3171-020, 3171, 3171A020, 3171A,
3127-055, 3127-080.

Group II: 3127-035, 3127-075, 3127-040, 3127-070.
Group III: 6810-020, 4305A, 6810-030, 4909, 4715,

4610, 4723, 4802.

MODEL USE WITH VOLTS TYPE NOTES

5-1230 4391A 1.25 NiCd 6 Required
5-1587 4412 9 NiCd —
5-1375 4314B, 4410A, 9 Alkaline —

4041, 4410, APM-16

5-1475 4030 3 Li-Mn 3 Required

WATTMETER BATTERIES

MODEL DESCRIPTION

4240-165 QC (F) to QC (F)
4240-180 Copl. (M) to QC (F)
4240-187 3

1

⁄8" Unflg 51.5 ohms to QC (F)

4240-194 3

1

⁄8" Flg. to QC (F)

4240-201

7

⁄8" Flg. to QC (F)
4240-244 Rt. Angle QC
4240-260 1

5

⁄8" Flg. to QC (F)

7500-076 DC conn. plug

QC ADAPTERS, CONNECTORS

MODEL USE WITH DESCRIPTION

3610-031 All Element Sockets Dummy Plug

5-1864 4314B Power Supply 115 V

5-1940 4314B Power Supply 230 V
5A2229 AT Series Power Supply 120 V
5A2226 AT Series Power Supply 230 V

MISCELLANEOUS

USE WITH

MODEL CONNECTOR LENGTH

GROUP

3170-058-1 BNC (M) 14" 1
3170-058-6 BNC (M) 6’ 1
3170-058-2 BNC (M) 15’ 1
3170-058-3 BNC (M) 25’ 1
3170-058-4 BNC (M) 40’ 1
3170-058-5 BNC (M) 50’ 1
3170-058-7 BNC (M) 80’ 1
3170-058-8 BNC (M) 90’ 1
3170-058-9 BNC (M) 100’ 1
4220-097-5 Spade Lug 16" II
4220-097-1 Spade Lug 33" II

4220-097-22 Spade Lug 48" II

4220-097-7 Spade Lug 10’ II

4220-097-9 Spade Lug 15’ II
4220-097-10 Spade Lug 25’ II
4220-097-17 Spade Lug 50’ II
4220-097-13 Spade Lug 75’ II
4220-097-16 Spade Lug 100’ II

7500-072-1 DC Plug 39

1

⁄2’ III
7500-072-3 DC Plug 5’ III
7500-072-4 DC Plug 10’ III
7500-072-2 DC Plug 25’ III

DC CABLE ASSEMBLIES*

RG-58/U cables with a Model 7500-076
DC plug on one end and the connector
in the table below on the other end.

Phone: [phone] • Fax: [phone]

M

e

M

C

R

e

R

E

e

e

I

+

M

e

Figure 2

–

M

e

Figure 3

RELATIVE RESPONSE

10C ELEMENT: 10 W, 100 – 250 MHZ

20 40 60 80 100 200 400 600 800 1000

0 dB
– 5 dB
– 10 dB

0 dB
– 5 dB
– 10 dB

0 dB
– 5 dB
– 10 dB

100C ELEMENT: 10 W, 100 – 250 MHZ

5000 ELEMENT: 500 W, 100 – 250 MHZ

Figure 4

62

TECHNICAL DATA

THRULINE®principle

eRfrom the division of E by R and C, eR= RE= RE jvC

X

C

(if R << XC), and eMby induction eM= Ijv (±M).

The sum e

R

+ eM= jv(CRE ±MI) = e

Besides selecting R very much smaller that x

C

, the components of the circuit are

chosen so that

CR = M/Z°.

The output voltage is now

e =

jv(EM/Z

°

±

MI) = jvM(E/Z

°

±

I)

At any one point on a transmission line, the voltage E is the sum of the forward
and reflected voltages E

f

+ Er, and the current I is Ef/Z°– Er/Z°(Since the reflected

wave travels in the opposite direction,

Ir= – Er/Z°).

When the element is pointing toward the load, the output voltage is

e

➝ = jvM(E/ Z

°

+

I) = jvM

{

Ef+ E

r

+

E

f

– E

r

}

=

=

j

vM

(2Ef)

Z

°

and turning the element toward the source, it becomes ...

e =

jvM(E/Z°– I) = jvM

{

Ef+ E

r

+

E

f

– E

r

}

=

=

j

vM

(2Er)

Z

°

We have now proved what we set out to show, namely that the RF output voltage
from the sensing element is directional and proportional to the voltage in the line due
to either the forward or the reflected wave. It is also directly proportional to

v, that

is to frequency (

v = 2πf). In order to make it frequency independent, we terminate

e in a capacitive reactance which is inversely proportional to

v. The voltage across

this capacitor is rectified, filtered and displayed on a meter calibrated in RF watts.
For additional details on THRULINE

®

principles, write for “WATT’S NEW FROM

BIRD” vol. 2 no. 2.

The basic sensing circuit of a THRULINE

®

plug-in element consists of the mutual
inductance M between the loop and the center conductor and the voltage divider
C and R. In Fig. 1, E is the voltage between outer and center conductor and

I is the

current. Elements can be rotated 180˚, resulting in either a positive or a negative
M (Fig. 2 and 3). The output voltage in this lumped-constant directional coupler is
the sum of two samples:

Z

°

Z

°

➝

Z

°

Z

°

Frequency Response THRULINE®Elements,
100–250 MHz (C-Series)

Higher power elements have flatter frequency characteristics
than tighter coupled lower-power units. Beyond the stated
frequency range, measurement results cannot be predicted.

Figure 1

E-mail: [email protected] • Internet: www.bird-electronic.com

Transmission Type Frequency PEV

RMS

PEP = P

AVE

Models 4314B, 4391A

Model 43 Model

and Scope Pattern Spectrum

(arbitrary)

PEV

2

RMS

(Average

CW PEP% MOD 4304A, APM-16

(C = Carrier)

Z

0

Heating Mode Mode Mode 4308

Power)

Table A
Multiple 1600W 400W — 1600W — — 400W
Carriers

Table B
CW 100W 100W 100W 100W 0% 100W 100W

Table C
AM 400W 150W 100W 400W 100% 100W 150W
100% Mod.

Table D
AM 300W 127W 100W 300W 73% 100W 127W
75% Mod.

Table E
SSB 100W 100W 100W 100W 0% 100W 100W
1 Tone

Table F
SSB 100W 50W 25W 100W 100% 40.5W 50W
2 Tones

Table G
SSB 100W — — 100W — — —
Voice

Table H

Models 4314B, 4391A only

TV Black 100W 60.1W

— 100W —

59.6W 60.1W

Level

Table 1
Pulse 100W 10W — 100W 100% — 10W

63

TECHNICAL DATA

Interpreting readings on peak

Wattmeters with Multicarrier, CW, AM, SSB, and pulsed signals

1 2 3 4

1.5

1.4

1.3

1.2

1.1

1.0

P /PC

PEP/PC

100

80

60

40

20

0

% MODULATION (AM)

AVE

In the table below, Z°= 50 ohms, PEP is peak envelope power,
and PEV is peak envelope voltage. The PEV of the carrier
(or suppressed carrier) C was arbitrarily chosen at 100 volts
in all examples, PEV

RMS

= . To obtain a detailed essay on
this subject, write for ”WATT’S NEW FROM BIRD” vol. 4, no. 2.
For TV black level measurement (table H), refer to vol. 5, no. 3.

The graph at right shows correlation of peak-envelope-power
(PEP), average heating power (P

AVE

) and % modulation of

AM signals for Tables B, C, and D below.

PEV

1.414

Figure 1

CC CCCC CC

400400

VV

400V400V

22

100100

VV

CC

100V100V

22

200200

VV

CC

200V200V

22

173173

VV

CC

173V173V

22

100100

VV

(C)(C)

100V100V

22

(C)(C)

100100

VV

100V100V

22

100V100V

CC

100100

VV

22

CC

100100

VV

100V100V

10%10% 90%90%

22

(C)(C)

100100

VV

100V100V

22

Phone: [phone] • Fax: [phone]

64

TECHNICAL DATA

Required length of cable to equal 1⁄2 or 1 wavelength
when added to a THRULINE®wattmeter

FREQUENCY MHz

0 100 200 300 400 500 600

36

32

28

24

20

16

12

8

4

CABLE LENGTH (inches)

10

9

8

7

6

5

4

600 700 800 900 1000

1) Physical cable length shown in inches is measured from

end to end of outer conductor of connectors (TNC and
N Male connectors), except for cables with UHF or Mini­UHF plugs where the cable length is measured from tip
to tip of the center pins.

2) Dimensions shown are for solid polyethylene cable (e.g.

RG-58C/U, RG-8/U) which has 66% the velocity of propa­gation relative to air. If so-called ”RG-58 type“ or ”RG-8
type“ cables (which often contain foam polyethylene)
are used, the dimensions in the graph must be multiplied
by that cable’s relative velocity (say 79%) divided by 66%
(i.e. by a factor of 79% ÷ 66% = 1.2).

TYPICAL PEAK POWER RATINGS

When a Model APM-16, 43, 4431, 4314B or 4391A is used to match
a load to a transmitter and a good match is obtained, removing
the instrument will not cause any change in the conditions,
since a good 50 ohm load can be placed at the end of a 50 ohm
transmission line of any length without altering conditions at
the transmitter.

What happens when the load is not well matched, like an antenna
with a VSWR of 1.5 or 2.0? Since the length of line between a
mismatched load and the source transforms the impedance of the
load as seen at the source, line length now becomes critical. If the
adjustments for maximum power transfer were made with the
Model 43 in place, removing it shortens the line by four inches, plus
two connectors. This still is no cause for concern at low frequencies
where four to five inches is a small fraction of a wavelength.
At higher frequencies; e.g., above 100 MHz, power output and
frequency of the source may be affected.

It is a principle of transmission line theory that the impedance is
identical on either side of

1

⁄2wavelengths. In order to duplicate
the conditions in your transmission line with the above Model
wattmeters either in or out of the line, it is only necessary to insert
or remove one or more

1

⁄2wavelengths. This is easily done by

making up a length of cable which, when added to the THRULINE

®

,

equals one or more

1

⁄2wavelengths at the frequency of measure­ment. If more than one frequency is involved, one cable is needed
for each frequency.

AVG. PULSE WIDTH (µs)

MODELS

POWER 1 10 100 1000 5000

Oil Dielectric Loads

8135 150 W 10 kW 8.0 kW 5.75 kW 3.5 kW 2.0 kW
8201 500 W 200 kW 150 kW 105 kW 57 kW 25 kW
8251 1000 W 200 kW 150 kW 105 kW 57 kW 25 kW
8890 Series 2.5 kW 150 kW 115 kW 80 kW 54 kW 22 kW
8920 Series 5 kW 150 kW 115 kW 80 kW 54 kW 22 kW
8930 Series 10 kW 150 kW 120 kW 85 kW 55 kW 30 kW

Direct Water-Cooled Loads

8730 Series 10 kW 100 kW 77 kW 56 kW 32 kW 16 kW
8740 Series 20 kW 250 kW 190 kW 135 kW 75 kW 35 kW
8750 Series 30 kW 250 kW 190 kW 135 kW 75 kW 40 kW
8760 Series 40 kW 250 kW 197 kW 145 kW 90 kW 55 kW
8770 Series 50 kW 250 kW 197 kW 145 kW 97 kW 65 kW
8790 Series 80 kW 250 kW 210 kW 170 kW 130 kW 100 kW

Note: The duty factor should be such that
the average power rating of the load is
never exceeded.

E-mail: [email protected] • Internet: www.bird-electronic.com

65

INDEX

By Product and Model Number

****–677-1 . . . . . . . . . . . . . . . . . 53

****–677-2 . . . . . . . . . . . . . . . . . 53

10-A . . . . . . . . . . . . . . . . . . . . . . 55

10-T. . . . . . . . . . . . . . . . . . . . . . . 43

100-A . . . . . . . . . . . . . . . . . . . . . 56

100-T. . . . . . . . . . . . . . . . . . . . . . 44

100-CT. . . . . . . . . . . . . . . . . . . . . 44

150-A . . . . . . . . . . . . . . . . . . . . . 57

150-T. . . . . . . . . . . . . . . . . . . . . . 45

150-CT. . . . . . . . . . . . . . . . . . . . . 45

2-A . . . . . . . . . . . . . . . . . . . . . . . 55

2-A-MFA-XX . . . . . . . . . . . . . . . . 54

2-T. . . . . . . . . . . . . . . . . . . . . . . . 43

25-A . . . . . . . . . . . . . . . . . . . . . . 55

25-T. . . . . . . . . . . . . . . . . . . . . . . 43

25-CT. . . . . . . . . . . . . . . . . . . . . . 43

250-CT. . . . . . . . . . . . . . . . . . . . . 45

300-A . . . . . . . . . . . . . . . . . . . . . 57

300-T. . . . . . . . . . . . . . . . . . . . . . 46

3126A . . . . . . . . . . . . . . . . . . . . . 33

3127-035 . . . . . . . . . . . . . . . . . . . 35

3127-040 . . . . . . . . . . . . . . . . . . . 35

3127-055 . . . . . . . . . . . . . . . . . . . 35

3127-070 . . . . . . . . . . . . . . . . . . . 35

3127-075 . . . . . . . . . . . . . . . . . . . 35

3127-080 . . . . . . . . . . . . . . . . . . . 35

3127A . . . . . . . . . . . . . . . . . . . . . 33

3128A . . . . . . . . . . . . . . . . . . . . . 19

3170-058-1 . . . . . . . . . . . . . . . . . 61

3170-058-2 . . . . . . . . . . . . . . . . . 61

3170-058-3 . . . . . . . . . . . . . . . . . 61

3170-058-4 . . . . . . . . . . . . . . . . . 61

3170-058-5 . . . . . . . . . . . . . . . . . 61

3170-058-6 . . . . . . . . . . . . . . . . . 61

3170-058-7 . . . . . . . . . . . . . . . . . 61

3170-058-8 . . . . . . . . . . . . . . . . . 61

3170-058-9 . . . . . . . . . . . . . . . . . 61

3170A . . . . . . . . . . . . . . . . . . . . . 20

3171A . . . . . . . . . . . . . . . . . . . . . 32

3171A020 . . . . . . . . . . . . . . . . . . 32

3610-031 . . . . . . . . . . . . . . . . . . . 61

4022 . . . . . . . . . . . . . . . . . . . . . . . 6

4023 . . . . . . . . . . . . . . . . . . . . . . . 6

4024 . . . . . . . . . . . . . . . . . . . . . . . 6

4025 . . . . . . . . . . . . . . . . . . . . . . . 6

4030 . . . . . . . . . . . . . . . . . . . . . . 22

4041 . . . . . . . . . . . . . . . . . . . . . . 22

4100-014 . . . . . . . . . . . . . . . . . . . 60

4100-015 . . . . . . . . . . . . . . . . . . . 60

4100-017 . . . . . . . . . . . . . . . . . . . 60

4100-055 . . . . . . . . . . . . . . . . . . . 60

4110-014 . . . . . . . . . . . . . . . . . . . 60

4152-220 . . . . . . . . . . . . . . . . . . . 18

4163-240 . . . . . . . . . . . . . . . . . . . 18

4164-240 . . . . . . . . . . . . . . . . . . . 18

4169-300 . . . . . . . . . . . . . . . . . . . 18

4201 . . . . . . . . . . . . . . . . . . . . . . 18

4201A501 . . . . . . . . . . . . . . . . . . 18

4201A502 . . . . . . . . . . . . . . . . . . 18

4201A503 . . . . . . . . . . . . . . . . . . 18

4201A504 . . . . . . . . . . . . . . . . . . 18

4210A100 . . . . . . . . . . . . . . . . . . 23

4220-097-1 . . . . . . . . . . . . . . . . . 61

4220-097-10 . . . . . . . . . . . . . . . . 61

4220-097-13 . . . . . . . . . . . . . . . . 61

4220-097-16 . . . . . . . . . . . . . . . . 61

4220-097-17 . . . . . . . . . . . . . . . . 61

4220-097-22 . . . . . . . . . . . . . . . . 61

4220-097-5 . . . . . . . . . . . . . . . . . 61

4220-097-7 . . . . . . . . . . . . . . . . . 61

4220-097-9 . . . . . . . . . . . . . . . . . 61

4230-006-1 . . . . . . . . . . . . . . . . . 23

4230-018 . . . . . . . . . . . . . . . . . . . 23

4230-053 . . . . . . . . . . . . . . . . . . . 23

4230-059 . . . . . . . . . . . . . . . . . . . 23

4240-002 . . . . . . . . . . . . . . . . . . . 60

4240-012 . . . . . . . . . . . . . . . . . . . 60

Absorption Wattmeters . . . . . . . . . . . . . . . . . . . . . 39–41

Antenna Testers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5

Attenuators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54–58

Bi-directional . . . . . . . . . . . . . . . . . . . . . . . . . . . 54–57

Dry, 2 – 40 W . . . . . . . . . . . . . . . . . . . . . . . . . . . 54–55

Dry, 50 – 100 W . . . . . . . . . . . . . . . . . . . . . . . . . 56–57

Dry, 150 – 300 W . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Oil, 100 – 200 W. . . . . . . . . . . . . . . . . . . . . . . . . 56–57

Oil, 0.5 – 4 kW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Bus Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Blower Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . 48, 58

Cable Assemblies, DC. . . . . . . . . . . . . . . . . . . . . . . . . . 61

Calibration Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Calorimeters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Cases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7, 24

CE Mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Cigarette Lighter Adapter . . . . . . . . . . . . . . . . . . . . . . . 5

Coaxial Selector Switches. . . . . . . . . . . . . . . . . . . . . . . 59

Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53, 60–61

Adapter Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Flange to Flange Adapters . . . . . . . . . . . . . . . . . . . 53

Flange to QC Adapters . . . . . . . . . . . . . . . . . . . . . . 61

SQC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

QC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

QC Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Coolants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Coupling Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Directional Couplers. . . . . . . . . . . . . . . . . . . . . . . . 28, 59

Dollies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Duct, Hot Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Dummy Loads (See Terminations)
ECONOLOADS

®

. . . . . . . . . . . . . . . . . . . . . . . . . . . 50–51

Elements (See Plug-in Elements)

Field Strength Meters . . . . . . . . . . . . . . . . . . . . . . . . . 22

Flange Adapters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Line Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23, 34

7

⁄8" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

1

5

⁄8" to 61⁄8" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Loads (See Terminations)

Meter Movements . . . . . . . . . . . . . . . . . . . . . . . . . 23, 35

Housed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23, 35

Panel Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Round . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

MODULOADS

®

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 51–52

Mounting Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Oil Dielectric Coolant. . . . . . . . . . . . . . . . . . . . . . . . . . 53

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23, 53, 61

Peak Power Kit, Model 43 . . . . . . . . . . . . . . . . . . . . . . 13

Plug-in Elements . . . . . . . . . . . . . . . 11, 22, 25–28, 36–38

APM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11, 28

Directional Coupler . . . . . . . . . . . . . . . . . . . . . . 28, 36

Dummy Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Field Strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

For 1

5

⁄8" Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

For 3

1

⁄8" Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

For 4

1

⁄16" Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

For 6

1

⁄8" Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

For Model 4410A. . . . . . . . . . . . . . . . . . . . . . . . . . . 27

For Model 4305A. . . . . . . . . . . . . . . . . . . . . . . . 27, 37

High Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

High Power . . . . . . . . . . . . . . . . . . . . . . . . . 27, 37–38

Low Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25, 26

Low Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Milliwatt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Sampler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Selection Guides . . . . . . . . . . . . . . . . . . . . . . . . . 25,36

Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Power Alarm Systems . . . . . . . . . . . . . . . . . 19–20, 32–33

POWER ANALYST

®

Wattmeter . . . . . . . . . . . . . . . . . . 21

Power Supplies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Power Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6, 18

Power Meters (See Wattmeters)

QC-Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Resistors, Replacement . . . . . . . . . . . . . . . . . . . . . . . . 53

Rigid Line Sections . . . . . . . . . . . . . . . . . . . . . . . . . 23, 34

Selection Guides . . . . . . . . . . . . . 9, 25, 29, 36, 39, 42, 54

Attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Plug-in Element . . . . . . . . . . . . . . . . . . . . . . . . . 25, 36

Termination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Wattmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . 9, 29, 39

Sensors, Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6, 18

Signal Sampler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Signal Sampler Elements . . . . . . . . . . . . . . . . . . . . . . . 28

Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5,7

SQC Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53, 59

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62–64

Terminations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42–53

Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Dry, 2 – 75 W . . . . . . . . . . . . . . . . . . . . . . . . . . . 43–44

Dry and Oil, 100 – 250 W. . . . . . . . . . . . . . . . . . 44–45

Dry and Oil, 300 – 600 W. . . . . . . . . . . . . . . . . . 46–47

Dry Forced-Air, 10 – 15 kW . . . . . . . . . . . . . . . . . . . 52

Dry Forced-Air, 25 kW . . . . . . . . . . . . . . . . . . . . . . . 53

ECONOLOADS

®

, 10 – 80 kW. . . . . . . . . . . . . . . . 50–51

MODULOADS

®

, 10 – 50 kW . . . . . . . . . . . . . . . . 51, 52

Oil, 1 – 2.5 kW . . . . . . . . . . . . . . . . . . . . . . . . . . 47–48

Oil, 5 – 10 kW . . . . . . . . . . . . . . . . . . . . . . . . . . 48–49

Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Water, 1 kW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Water, 5 – 30 kW . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Water, 40 – 80 kW . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Terms and Conditions (See separate price list)

Test Sets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Thermoswitches . . . . . . . . . . . . . . . . . . . . . . . . . . . 48, 53

Water Flow Switches . . . . . . . . . . . . . . . . . . . . . . . . . . 53

WATTCHER

®

Systems . . . . . . . . . . . . . . . . . 19–20, 32–33

Wattmeters . . . . . . . . . . . . . . . . . 6–21, 29–33, 35, 39–41

Absorption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39–41

Accessories (See specific item)

Advanced Power Measurement . . . . . . . . . . . . . . . 11

Alarm Systems . . . . . . . . . . . . . . . . . . . . 19–20, 32–33

Average Reading. . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Calorimeters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Cellular. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11, 15, 18

Digital Display . . . . . . . . . . . . . . . . . . . . . . . . . 6, 8, 21

Elements (See Plug-in Elements)

High Power . . . . . . . . . . . . . . . . . . . . . . 14, 30–33, 35

Laboratory Grade . . . . . . . . . . . . . . . . . . . . . . . . . 6–8

Model 43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Multichannel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Multifunction. . . . . . . . . . . . . . . . . . . . . . . . . . 6–7, 21

Multirange . . . . . . . . . . . . . . . . . . . . . . . . . 6–7, 15, 16

Panel/Rack Mount. . . . . . . . . . . . . . . 17–20, 32–33, 35

Parts (See specific item)

PEP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

RF Tap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14, 17

Selection Guides . . . . . . . . . . . . . . . . . . . . . . 9, 29, 39

TERMALINE

®

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 39–41

Test Sets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

WATTCHER

®

Systems . . . . . . . . . . . . . . . 19–20, 32–33

PRODUCT PAGE PRODUCT PAGE MODEL NUMBER* PAGE

* The Model Number Index does not include Plug-in Elements. See the Product Index, “Plug-In Elements.”

66

4240-018 . . . . . . . . . . . . . . . . . . . 60

4240-025 . . . . . . . . . . . . . . . . . . . 60

4240-031 . . . . . . . . . . . . . . . . . . . 60

4240-050 . . . . . . . . . . . . . . . . . . . 60

4240-062 . . . . . . . . . . . . . . . . . . . 60

4240-063 . . . . . . . . . . . . . . . . . . . 60

4240-080 . . . . . . . . . . . . . . . . . . . 60

4240-090 . . . . . . . . . . . . . . . . . . . 60

4240-096 . . . . . . . . . . . . . . . . . . . 60

4240-100 . . . . . . . . . . . . . . . . . . . 60

4240-110 . . . . . . . . . . . . . . . . . . . 60

4240-125 . . . . . . . . . . . . . . . . . . . 60

4240-132 . . . . . . . . . . . . . . . . . . . 60

4240-156 . . . . . . . . . . . . . . . . . . . 60

4240-160 . . . . . . . . . . . . . . . . . . . 60

4240-165 . . . . . . . . . . . . . . . . . . . 61

4240-179 . . . . . . . . . . . . . . . . . . . 60

4240-180 . . . . . . . . . . . . . . . . . . . 61

4240-187 . . . . . . . . . . . . . . . . . . . 61

4240-194 . . . . . . . . . . . . . . . . . . . 61

4240-201 . . . . . . . . . . . . . . . . . . . 61

4240-208 . . . . . . . . . . . . . . . . . . . 60

4240-220 . . . . . . . . . . . . . . . . . . . 53

4240-244 . . . . . . . . . . . . . . . . . . . 61

4240-260 . . . . . . . . . . . . . . . . . . . 61

4240-268 . . . . . . . . . . . . . . . . . . . 60

4240-278 . . . . . . . . . . . . . . . . . . . 60

4240-334 . . . . . . . . . . . . . . . . . . . 60

4240-336 . . . . . . . . . . . . . . . . . . . 60

4240-344 . . . . . . . . . . . . . . . . . . . 60

4240-346 . . . . . . . . . . . . . . . . . . . 60

4240-363 . . . . . . . . . . . . . . . . . . . 60

4240-400 . . . . . . . . . . . . . . . . . . . 61

4240-401 . . . . . . . . . . . . . . . . . . . 61

4273 . . . . . . . . . . . . . . . . . . . . . . 22

4273-020 . . . . . . . . . . . . . . . . . . . 22

4273-025 . . . . . . . . . . . . . . . . . . . 22

4273-030 . . . . . . . . . . . . . . . . . . . 22

4273-035 . . . . . . . . . . . . . . . . . . . 22

4273-100 . . . . . . . . . . . . . . . . . . . 22

4274-025 . . . . . . . . . . . . . . . . . . . 28

4274-050 . . . . . . . . . . . . . . . . . . . 28

4275 . . . . . . . . . . . . . . . . . . . . . . 22

4275-020 . . . . . . . . . . . . . . . . . . . 22

4275-025 . . . . . . . . . . . . . . . . . . . 22

4275-030 . . . . . . . . . . . . . . . . . . . 22

4275-035 . . . . . . . . . . . . . . . . . . . 22

4275-100 . . . . . . . . . . . . . . . . . . . 22

43 . . . . . . . . . . . . . . . . . . . . . . . . 12

4300-055 . . . . . . . . . . . . . . . . . . . 24

4300-061 . . . . . . . . . . . . . . . . . . . 24

4300-070 . . . . . . . . . . . . . . . . . . . 24

4300-085 . . . . . . . . . . . . . . . . . . . 24

4300-400 . . . . . . . . . . . . . . . . . . . 13

4300A215 . . . . . . . . . . . . . . . . 7, 24

4304A . . . . . . . . . . . . . . . . . . . . . 15

4305A . . . . . . . . . . . . . . . . . . . . . 14

4308 . . . . . . . . . . . . . . . . . . . . . . 15

4314B . . . . . . . . . . . . . . . . . . . . . 13

4380A-232. . . . . . . . . . . . . . . . . . 21

4380A-488. . . . . . . . . . . . . . . . . . 21

4391A . . . . . . . . . . . . . . . . . . . . . 21

4410A . . . . . . . . . . . . . . . . . . . . . 16

4412 . . . . . . . . . . . . . . . . . . . . . . 16

4420 . . . . . . . . . . . . . . . . . . . . . . . 7

4421 . . . . . . . . . . . . . . . . . . . . . . . 6

4421-232 . . . . . . . . . . . . . . . . . . . . 6

4421-488 . . . . . . . . . . . . . . . . . . . . 6

4421A500 . . . . . . . . . . . . . . . . . . . 7

4431 . . . . . . . . . . . . . . . . . . . . . . 14

4501-000 . . . . . . . . . . . . . . . . . . . 23

4502-000 . . . . . . . . . . . . . . . . . . . 23

4521 . . . . . . . . . . . . . . . . . . . . . . 17

4522 . . . . . . . . . . . . . . . . . . . . . . 17

4522-002-5 . . . . . . . . . . . . . . . . . 23

4526 . . . . . . . . . . . . . . . . . . . . . . 17

4527 . . . . . . . . . . . . . . . . . . . . . . 17

4600-000 . . . . . . . . . . . . . . . . . . . 34

4600-020 . . . . . . . . . . . . . . . . . . . 53

4600-025 . . . . . . . . . . . . . . . . . . . 53

4600-037A. . . . . . . . . . . . . . . . . . 30

460A . . . . . . . . . . . . . . . . . . . . . . 30

4610-000 . . . . . . . . . . . . . . . . . . . 34

4610-200A. . . . . . . . . . . . . . . . . . 30

4610-300A. . . . . . . . . . . . . . . . . . 30

4641-000 . . . . . . . . . . . . . . . . . . . 34

4641-037A. . . . . . . . . . . . . . . . . . 31

4641-080A. . . . . . . . . . . . . . . . . . 31

4641A . . . . . . . . . . . . . . . . . . . . . 31

4642-000 . . . . . . . . . . . . . . . . . . . 34

4642-200A. . . . . . . . . . . . . . . . . . 31

4642-300A. . . . . . . . . . . . . . . . . . 31

4712-000 . . . . . . . . . . . . . . . . . . . 34

4712-015 . . . . . . . . . . . . . . . . . . . 53

4712-020 . . . . . . . . . . . . . . . . . . . 53

4712-037A. . . . . . . . . . . . . . . . . . 30

4712A . . . . . . . . . . . . . . . . . . . . . 30

4715-000 . . . . . . . . . . . . . . . . . . . 34

4715-200A. . . . . . . . . . . . . . . . . . 30

4715-300A. . . . . . . . . . . . . . . . . . 30

4720-000 . . . . . . . . . . . . . . . . . . . 34

4720A . . . . . . . . . . . . . . . . . . . . . 30

4723-000 . . . . . . . . . . . . . . . . . . . 34

4723-200A. . . . . . . . . . . . . . . . . . 30

4801-000 . . . . . . . . . . . . . . . . . . . 34

4801-100 . . . . . . . . . . . . . . . . . . . 34

4802-000 . . . . . . . . . . . . . . . . . . . 34

4802-200A. . . . . . . . . . . . . . . . . . 30

4802-300A. . . . . . . . . . . . . . . . . . 30

4805-000 . . . . . . . . . . . . . . . . . . . 34

4805-037A. . . . . . . . . . . . . . . . . . 30

4805A . . . . . . . . . . . . . . . . . . . . . 30

4843-000 . . . . . . . . . . . . . . . . . . . 34

4843-037A. . . . . . . . . . . . . . . . . . 31

4843-080A. . . . . . . . . . . . . . . . . . 31

4843A . . . . . . . . . . . . . . . . . . . . . 31

4844-000 . . . . . . . . . . . . . . . . . . . 34

4844-200A. . . . . . . . . . . . . . . . . . 31

4844-300A. . . . . . . . . . . . . . . . . . 31

4902-000 . . . . . . . . . . . . . . . . . . . 34

4902-020 . . . . . . . . . . . . . . . . . . . 53

4902-025 . . . . . . . . . . . . . . . . . . . 53

4902-037A. . . . . . . . . . . . . . . . . . 31

4902-080A. . . . . . . . . . . . . . . . . . 31

4902A . . . . . . . . . . . . . . . . . . . . . 31

4905-000 . . . . . . . . . . . . . . . . . . . 34

4905-200A. . . . . . . . . . . . . . . . . . 31

4905-300A. . . . . . . . . . . . . . . . . . 31

4907-000 . . . . . . . . . . . . . . . . . . . 34

4907-080A. . . . . . . . . . . . . . . . . . 31

4907A . . . . . . . . . . . . . . . . . . . . . 31

4909-000 . . . . . . . . . . . . . . . . . . . 34

4909-200A. . . . . . . . . . . . . . . . . . 31

5-030-3 . . . . . . . . . . . . . . . . . . . . 53

5-1070-2 . . . . . . . . . . . . . . . . . . . 53

5-1134-3 . . . . . . . . . . . . . . . . . . . 53

5-1230 . . . . . . . . . . . . . . . . . . . . . 61

5-1322 . . . . . . . . . . . . . . . . . . . . . 53

5-1375 . . . . . . . . . . . . . . . . . . . . . 61

5-1475 . . . . . . . . . . . . . . . . . . . . . 61

5-1587 . . . . . . . . . . . . . . . . . . . . . 61

5-1864 . . . . . . . . . . . . . . . . . . . . . 61

5-1940 . . . . . . . . . . . . . . . . . . . . . 61

5-289. . . . . . . . . . . . . . . . . . . . . . 53

5-726. . . . . . . . . . . . . . . . . . . . . . 53

5-898-2 . . . . . . . . . . . . . . . . . . . . 53

5-898-3 . . . . . . . . . . . . . . . . . . . . 53

5-898-4 . . . . . . . . . . . . . . . . . . . . 53

5-898-6 . . . . . . . . . . . . . . . . . . . . 53

5-898-7 . . . . . . . . . . . . . . . . . . . . 53

5-A . . . . . . . . . . . . . . . . . . . . . . . 55

5-T. . . . . . . . . . . . . . . . . . . . . . . . 43

50-A . . . . . . . . . . . . . . . . . . . . . . 56

50-T. . . . . . . . . . . . . . . . . . . . . . . 44

50-CT. . . . . . . . . . . . . . . . . . . . . . 44

500-CT. . . . . . . . . . . . . . . . . . . . . 46

5A2226 . . . . . . . . . . . . . . . . . . . . 61

5A2229 . . . . . . . . . . . . . . . . . . . . 61

5A2388 . . . . . . . . . . . . . . . . . . . . 53

5A2393 . . . . . . . . . . . . . . . . . . . . 53

6085 . . . . . . . . . . . . . . . . . . . . . . . 8

6091 . . . . . . . . . . . . . . . . . . . . . . . 8

6091P . . . . . . . . . . . . . . . . . . . . . . 8

6104 . . . . . . . . . . . . . . . . . . . . . . 39

6151A . . . . . . . . . . . . . . . . . . . . . 40

6154 . . . . . . . . . . . . . . . . . . . . . . 40

6156 . . . . . . . . . . . . . . . . . . . . . . 40

6732B . . . . . . . . . . . . . . . . . . . . . 40

6734B . . . . . . . . . . . . . . . . . . . . . 40

6734B030 . . . . . . . . . . . . . . . . . . 40

6735-300A. . . . . . . . . . . . . . . . . . 41

6736-030A. . . . . . . . . . . . . . . . . . 41

6736A . . . . . . . . . . . . . . . . . . . . . 41

6737-030A. . . . . . . . . . . . . . . . . . 41

6737A . . . . . . . . . . . . . . . . . . . . . 41

6770-120 . . . . . . . . . . . . . . . . . . . 53

6770-125 . . . . . . . . . . . . . . . . . . . 53

6770-130 . . . . . . . . . . . . . . . . . . . 53

6771-011 . . . . . . . . . . . . . . . . . . . 53

6772-011 . . . . . . . . . . . . . . . . . . . 53

6810-220 . . . . . . . . . . . . . . . . . . . 35

6810-230 . . . . . . . . . . . . . . . . . . . 35

6810-250 . . . . . . . . . . . . . . . . . . . 35

6810-265 . . . . . . . . . . . . . . . . . . . 35

6810-307 . . . . . . . . . . . . . . . . . . . 35

6810-309-7 . . . . . . . . . . . . . . . . . 35

7000A850 . . . . . . . . . . . . . . . . . . 24

718 . . . . . . . . . . . . . . . . . . . . . . . 59

7181 . . . . . . . . . . . . . . . . . . . . . . 59

72-2. . . . . . . . . . . . . . . . . . . . . . . 59

72-R. . . . . . . . . . . . . . . . . . . . . . . 59

74 . . . . . . . . . . . . . . . . . . . . . . . . 59

7422 . . . . . . . . . . . . . . . . . . . . . . 59

7431 . . . . . . . . . . . . . . . . . . . . . . 59

7441 . . . . . . . . . . . . . . . . . . . . . . 59

75-A . . . . . . . . . . . . . . . . . . . . . . 56

75-T. . . . . . . . . . . . . . . . . . . . . . . 44

7500-072-1 . . . . . . . . . . . . . . . . . 61

7500-072-2 . . . . . . . . . . . . . . . . . 61

7500-072-3 . . . . . . . . . . . . . . . . . 61

7500-072-4 . . . . . . . . . . . . . . . . . 61

7500-076 . . . . . . . . . . . . . . . . 53, 61

8-000. . . . . . . . . . . . . . . . . . . . . . 23

8071-1 . . . . . . . . . . . . . . . . . . . . . 45

8072A-1. . . . . . . . . . . . . . . . . . . . 46

8135 . . . . . . . . . . . . . . . . . . . . . . 45

8141 . . . . . . . . . . . . . . . . . . . . . . 45

8201 . . . . . . . . . . . . . . . . . . . . . . 46

8230 . . . . . . . . . . . . . . . . . . . . . . 47

8251 . . . . . . . . . . . . . . . . . . . . . . 47

8322 . . . . . . . . . . . . . . . . . . . . . . 57

8323 . . . . . . . . . . . . . . . . . . . . . . 57

8325 . . . . . . . . . . . . . . . . . . . . . . 58

8327-300 . . . . . . . . . . . . . . . . . . . 58

8329-300 . . . . . . . . . . . . . . . . . . . 58

8341 . . . . . . . . . . . . . . . . . . . . . . 55

8341-030 . . . . . . . . . . . . . . . . . . . 55

8341-060 . . . . . . . . . . . . . . . . . . . 55

8341-100 . . . . . . . . . . . . . . . . . . . 55

8341-200 . . . . . . . . . . . . . . . . . . . 55

8343 . . . . . . . . . . . . . . . . . . . . . . 56

8343-030 . . . . . . . . . . . . . . . . . . . 56

8343-060 . . . . . . . . . . . . . . . . . . . 56

8343-100 . . . . . . . . . . . . . . . . . . . 56

8343-200 . . . . . . . . . . . . . . . . . . . 56

8401 . . . . . . . . . . . . . . . . . . . . . . 46

8431 . . . . . . . . . . . . . . . . . . . . . . 46

8572-021 . . . . . . . . . . . . . . . . . . . 53

8572-078 . . . . . . . . . . . . . . . . . . . 53

8572A/73A-115-6, -230-5. . . . . . . 53

8578A100 . . . . . . . . . . . . . . . . . . 52

8578A150 . . . . . . . . . . . . . . . . . . 52

8630-013 . . . . . . . . . . . . . . . . . . . 53

8631-115 . . . . . . . . . . . . . . . . . . . 51

8631-230 . . . . . . . . . . . . . . . . . . . 51

8640-066 . . . . . . . . . . . . . . . . . . . 53

8645-115 . . . . . . . . . . . . . . . . . . . 51

8645-230 . . . . . . . . . . . . . . . . . . . 51

8655-115 . . . . . . . . . . . . . . . . . . . 52

8655-230 . . . . . . . . . . . . . . . . . . . 52

8656-115 . . . . . . . . . . . . . . . . . . . 52

8656-230 . . . . . . . . . . . . . . . . . . . 52

8710F . . . . . . . . . . . . . . . . . . . . . 49

8710M. . . . . . . . . . . . . . . . . . . . . 49

8711F . . . . . . . . . . . . . . . . . . . . . 49

8711M. . . . . . . . . . . . . . . . . . . . . 49

8720 . . . . . . . . . . . . . . . . . . . . . . 50

8726 . . . . . . . . . . . . . . . . . . . . . . 50

8730-031-1 . . . . . . . . . . . . . . . . . 53

8730A . . . . . . . . . . . . . . . . . . . . . 50

8731 . . . . . . . . . . . . . . . . . . . . . . 50

8738A . . . . . . . . . . . . . . . . . . . . . 50

8738A072 . . . . . . . . . . . . . . . . . . 53

8745 . . . . . . . . . . . . . . . . . . . . . . 50

8746 . . . . . . . . . . . . . . . . . . . . . . 50

8750-115 . . . . . . . . . . . . . . . . . . . 53

8750-230 . . . . . . . . . . . . . . . . . . . 53

8755 . . . . . . . . . . . . . . . . . . . . . . 50

8755-027-3 . . . . . . . . . . . . . . . . . 53

8755-027-4 . . . . . . . . . . . . . . . . . 53

8755-027-5 . . . . . . . . . . . . . . . . . 53

8755-029-2 . . . . . . . . . . . . . . . . . 53

8756 . . . . . . . . . . . . . . . . . . . . . . 50

8765 . . . . . . . . . . . . . . . . . . . . . . 51

8766 . . . . . . . . . . . . . . . . . . . . . . 51

8775 . . . . . . . . . . . . . . . . . . . . . . 51

8776 . . . . . . . . . . . . . . . . . . . . . . 51

8792 . . . . . . . . . . . . . . . . . . . . . . 51

8792-010-1 . . . . . . . . . . . . . . . . . 53

8792-010-2 . . . . . . . . . . . . . . . . . 53

8833-300 . . . . . . . . . . . . . . . . . . . 47

8860 . . . . . . . . . . . . . . . . . . . . . . 47

8861 . . . . . . . . . . . . . . . . . . . . . . 47

8862 . . . . . . . . . . . . . . . . . . . . . . 47

8863 . . . . . . . . . . . . . . . . . . . . . . 47

8864 . . . . . . . . . . . . . . . . . . . . . . 47

8890 . . . . . . . . . . . . . . . . . . . . . . 48

8890-008 . . . . . . . . . . . . . . . . . . . 53

8890-017 . . . . . . . . . . . . . . . . . . . 53

8890-300 . . . . . . . . . . . . . . . . . . . 48

8891-300 . . . . . . . . . . . . . . . . . . . 48

8892-300 . . . . . . . . . . . . . . . . . . . 48

8892-333 . . . . . . . . . . . . . . . . . . . 53

8895-300 . . . . . . . . . . . . . . . . . . . 48

8896-012 . . . . . . . . . . . . . . . . . . . 53

8896-300 . . . . . . . . . . . . . . . . . . . 48

8897-300 . . . . . . . . . . . . . . . . . . . 48

8898-300 . . . . . . . . . . . . . . . . . . . 48

8921 . . . . . . . . . . . . . . . . . . . . . . 49

8922 . . . . . . . . . . . . . . . . . . . . . . 49

8926 . . . . . . . . . . . . . . . . . . . . . . 49

8927 . . . . . . . . . . . . . . . . . . . . . . 49

8931-115, -230 . . . . . . . . . . . . . . 49

8932-115, -230 . . . . . . . . . . . . . . 49

8936-115, -230 . . . . . . . . . . . . . . 49

8937-115, -230 . . . . . . . . . . . . . . 49

APM-16 . . . . . . . . . . . . . . . . . . . . 11

AT-100 . . . . . . . . . . . . . . . . . . . . . . 5

AT-400. . . . . . . . . . . . . . . . . . . . . . 5

AT-800. . . . . . . . . . . . . . . . . . . . . . 5

BA-300-115, -230. . . . . . . . . . 48, 58

CC-1. . . . . . . . . . . . . . . . . . . . . . . 24

CC-2. . . . . . . . . . . . . . . . . . . . . . . 24

CC-3. . . . . . . . . . . . . . . . . . . . . . . 24

EC-1. . . . . . . . . . . . . . . . . . . . . . . 24

INDEX

By Model Number

* The Model Number Index does not include Plug-in Elements. See the Product Index, “Plug-In Elements.”

MODEL NUMBER* PAGE MODEL NUMBER* PAGE MODEL NUMBER* PAGE MODEL NUMBER* PAGE

Repair and Calibration

Bird maintains a complete Repair and
Calibration Department to provide expert, cost­effective repair and servicing of Bird Electronic
equipment. For repair rates, minimums, pay­ment terms, and warranty information, please
contact our Repair and Calibration Department
at 440-248-1200, then press 5 or hold for the
operator.

Special Performance Data

Individual special performance data can be
provided for many Bird Electronic products at a
minimum charge of $50 per unit. Please contact
our Repair and Calibration department for
further information.

Limited Warranty

We are proud of the high quality of our
products and we warrant them to the original
purchaser, for a period of one year upon
shipment, to be free from defects in materials
and workmanship under normal operating
conditions. When properly used products
will perform to factory specifications during
this period.

For complete warranty details, please contact
your local Bird Electronic Sales office, or visit
the Bird World Wide Web site.

Specifications

We reserve the right to discontinue any item
without notice and to change physical and
electrical specifications at any time without
incurring any obligation to incorporate new
features in instruments or parts previously sold.

For instruments offered with the “QC”
Connector feature, maximum VSWR values
listed in the specifications are obtained with the
connector type shown as “normally supplied.”

Listed power ratings for air cooled terminations
are valid to 5000 feet. For operation at higher
elevations, please contact us for applicable
derating factor.

Taxes

California, Indiana, and Ohio residents must
pay sales tax unless a tax exemption number is
on file. International orders may be subject to
other tariffs or duties.

SALES, TECHNICAL SUPPORT,
CALIBRATION & REPAIR

Sales Offices, Distributors, and
Representatives

Bird Electronic Corporation is represented
worldwide through a network of Corporate
Offices, Distributors, and Sales Organizations.
To find the nearest Bird agent, contact our
Customer Service Department at 440-248-1200,
then press 4 or hold for the operator. You can
find a complete international office listing on
the Bird World Wide Web site at:

http://www.bird-electronic.com

For Technical Assistance

If you need technical assistance, contact your
local sales representative, or a Sales Engineer at
Bird. Call 440-248-1200, then press 6 or hold for
the operator. For international customers we
suggest you contact the sales representative
in or near your country. You can also receive
technical help by e-mail at:

[email protected]

To Order Bird Products

To order products, contact our Customer Service
Department at 440-248-1200, then press 4 or
hold for the operator.

We are pleased to provide pricing and delivery
quotations by e-mail, postal mail, telephone, or
fax. All formal quotations are valid for 60 days
unless otherwise stated.

When requesting prices or placing an order,
please supply:

◆ Complete address, fax, phone, or e-mail

information so that we can contact you.

◆ Complete part number, description, quantity,

and desired options.

◆ Any special calibration or specification

requirements.

◆ Payment method, or Purchase Order Number

when placing an order.

◆ Billing and shipping information.

◆ Name of your purchasing agent or buyer.

◆ Preferred Method of Shipment

You may be asked for other information to help
us fill the order or quotation.

A Member of Bird Technologies Group

Corporate Headquarters
& Eastern US Sales:

Bird Electronic Corporation
30303 Aurora Road
Cleveland, Ohio 44139
Phone: [phone]
Fax: [phone]

Western US Sales:

Bird Electronic Corporation
621 West Ojai Avenue, Suite F
Ojai, California 93024
Phone: [phone]
Fax: [phone]

Midwestern US Sales:

Bird Electronic Corporation
50 W. Jefferson Street
Franklin, IN 46131
Phone: [phone]
Fax: [phone]

Asia-Pacific Sales:

Bird Electronic Limited ­37 Tannery Lane, #07-02
Tannery House
Singapore 347790
Phone: [phone]
Fax: [phone]

European Sales:

Bird Electronic Corporation
Berkhamsted House
121 High Street
Berkhamsted
Herts HP4 2DJ England
Phone: [phone]
Fax: [phone]

E-mail:

[email protected]

World Wide Web:

http://

www

.bird-electronic.com

HOW TO CONTACT US

Eastern US Sales Office: Midwestern US Sales Office: Western US Sales Office:

Bird Electronic Corporation Bird Electronic Corporation Bird Electronic Corporation
0303 Aurora Road 50 W. Jefferson Street 621 W. Ojai Avenue Suite F
Cleveland, OH 44139–2794 Franklin, IN 46131 Ojai, CA 93024–3724
Tel: [phone] Fax: [phone] Tel: [phone] Fax: [phone] Tel: [phone] Fax: [phone]
Email: sales@bird–electronic.com
Web: http://www.bird–electronic.com

Asia-Pacific Sales Office: European Sales Office:

Bird Electronic Limited Bird Electronic Corporation
37 Tannery Lane, #07-02 Berkhamsted House, 121 High St.
Tannery House Berkhamsted, Herts HP4 2DJ England
Singapore 347790 Tel: [phone] Fax: [phone]
Tel: [phone] Fax: [phone]

© 1998 Bird Electronic Corporation
Catalog No. BEC - GC - 98 Printed in U.S.A.

Advanced
Power Meter

Page 11

HF, VHF, and UHF
Antenna Testers

Page 4

Dry, Coaxial
Terminations
and Attenuators

Pages 42–45

Improved WATTCHER

®

RF Monitor/Alarms

Pages 19, 33

LOOK INSIDE FOR
THESE NEW PRODUCTS…

The name Bird has echoed uncompromising quality through­out the world of RF and microwave communications for
over a half century. Many technicians made their first
RF power measurement with a Model 43 THRULINE

®

Wattmeter and still use this remarkably accurate,
reliable, and rugged instrument today. But you'll also find
many new products throughout this catalog to help you install,
repair, maintain, and operate RF equipment and systems.

Bird's total commitment to research and development, advanced
engineering and quality-driven manufacturing are found in everything
from our new Advanced Power Meter to the latest Bi-directional

Attenuators. And you can confidently purchase any

of these state-of-art products with the assurance

that it will deliver the performance you expect.

At Bird,

new never means unproven. No Bird

design enters production without undergoing

extensive field tests, no instrument leaves our
plant unless it is exactly right.

The evolution and advance of RF technology
and applications into the next millennium

will be mirrored by Bird instruments that
will keep you and your business on the
cutting edge. You can count on it.

A Member of Bird Technologies Group

Multichannel
Power Meters

Page 18