HP 8447D, 2944A, 8447E, 2944A, 8447F, 2944A, 8447F H64, 3113A Operation And Service Manual

Printed in USA March 2000

Notice

Hewlett-Packard to Agilent Technologies Transition

This documentation supports a product that previously shipped under the Hewlett­Packard company brand name. The brand name has now been changed to Agilent
Technologies. The two products are functionally identical, only our name has changed. The
document still includes references to Hewlett-Packard products, some of which have been
transitioned to Agilent Technologies.

Advanced Test Equipment Rentals

www.atecorp.com 800-404-ATEC (2832)

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Contacting Agilent

By internet, phone, or fax, get assistance with all your test and measurement needs.

Table 1-1 Contacting Agilent

Online assistance: www.agilent.com/find/assist
United States

(tel) 1 800 452 4844

New Zealand

(tel) 0 800 738 378
(fax) ([phone]

Latin America

(tel) [phone]
(fax) [phone]

Japan

(tel) ([phone]
(fax) ([phone]

Canada

(tel) 1 877 894 4414
(fax) [phone]

Australia

(tel) 1 800 629 485
(fax) ([phone]

Asia Call Center Numbers

Country Phone Number Fax Number

Singapore 1-800-375-8100 (65) 836-0252
Malaysia 1-800-828-848 1-800-801664
Philippines (632) 8426802

1-800-16510170 (PLDT
Subscriber Only)

Thailand [phone] (outside Bangkok)

[phone] (within Bangkok)
Hong Kong 800-930-871 (852) 2506 9233
Taiwan 0800-047-866 (886) 2 25456723
People’s Republic

of China

800-810-0189 (preferred)

10800-650-0021

(632) 8426809
1-800-16510288 (PLDT
Subscriber Only)

(66) 1-661-3714

10800-650-0121

Europe

(tel) ([phone]
(fax) ([phone]

India 1-600-11-2929 000-800-650-1101

2 Chapter1

Operation and Service Manual

HP 8447D/E/F and HP 8447F H64

Amplifiers

Serial Numbers: HP 8447D, 2944A

HP 8447E, 2944A
HP 8447F, 2944A

HP 8447F H64, 3113A

Copyright Hewlett-Packard Company 1970-1996. All Rights Reserved. Reproduction, adaptation, or translation

without prior written permission is prohibited, except as allowed under the copyright laws.

1400 Fountaingrove Parkway, Santa Rosa, CA 95403-1799, USA

HP Part No. 08447-90066

Supersedes 08447-90033, 08447-90063, 08447-90059

Printed in USA

Print Date: July 1996

Legal

Legal

The information contained in this document is subject to change without notice.
Hewlett-Packard makes no warranty of any kind with regard to this material, in­cluding but not limited to, the implied warranties of merchantability and fitness for
a particular purpose. Hewlett-Packard shall not be liable for errors contained herein
or for incidental or consequential damages in connection with the furnishing, per­formance, or use of this material.

Safety Info

WARNING: Warning denotes a hazard. It calls attention to a procedure which, if not correctly

performed or adhered to, could result in injury or loss of life. Do not proceed beyond a
warning note until the indicated conditions are fully understood and met.

WARNING: This is a Safety Class I product (provided with a protective earthing ground

incorporated in the power cord). The mains plug shall only be inserted in a socket outlet
provided with a protective earth contact. Any interruption of the protective conductor,
inside or outside the instrument, is likely to make the instrument dangerous. Intentional
interruption is prohibited.

CAUTION: Caution denotes a hazard. It calls attention to a procedure that, if not correctly performed or

adhered to, would result in damage to or destruction of the instrument. Do not proceed beyond
a caution sign until the indicated conditions are fully understood and met.

CAUTION: This product is designed for use in Installation Category II and Pollution Degree 2.

This instrument has been designed and tested in accordance with IEC Publication
348, Safety Requirements for Electronic Measuring Apparatus, and has been sup­plied in a safe condition. The instruction documentation contains information and
warnings which must be followed by the user to ensure safe operation and to main­tain the instrument in a safe condition.

”CSA” The CSA mark is a registered trademark of the Canadian Standards Asso­ciation.

Notice for Germany: Noise Declaration LpA %< 70 dB am Arbeitsplatz (operator
position) normaler Betrieb (normal position) nach DIN 45635 T. 19 (per ISO 7779)

2 DRAFT

Operation and Service Manual

DRAFT 3

Operation and Service Manual

General Information

General Information

The HP 8447D, 8447E and 8447F are general purpose, wideband amplifiers. Each
instrument consists of a power supply and one or two thin film, hybrid, integrated
circuit amplifiers. The thin film amplifiers are hermetically sealed and feature low
noise, low distortion, flat frequency response, and long term stability and reliabil­ity.

The HP 8447D Amplifier is a pre-amplifier that provides 25 dB of gain to signals
from 100 kHz to 1.3 GHz. It can be used to increase the sensitivity of any lab,
shop or field device operating within its frequency range.

The HP 8447E Amplifier is a power amplifier that provides 22 dB of gain to sig­nals from 100 kHz to 1.3 GHz. It can be used to increase the output power of sig­nal generators, swept sources and similar devices operating within its frequency
range.

The HP 8447F Amplifier contains a preamplifier and a power amplifier. They are
the same thin film amplifiers used in the HP 8447D and HP 8447E. The input and
output ports of both amplifiers are available on the front panel. They can be used
separately or cascaded to provide 47 dB of gain.

The HP 8447F Option H64 Amplifier is a general purpose wide band amplifier
with Type-N connectors. It contains two preamplifiers. One provides 26 dB mini­mum gain to signals from 9 kHz to 50 MHz. The other provides 25 dB minimum
gain to signals from 100 kHz to 1300 MHz.

Table 1 HP 8447D and HP 8447E Specifications

Specifications

Frequency range 0.1 to 1300 MHz 0.1 to 1300 MHz

Typical 3 dB bandwidth (Std, Opt 001 and Opt 011) .075 to 1700 MHz .075 to 1400 MHz

Mean Gain (20° to 30°C) 25 dB minimum 22 dB ± 2.0dB

Gain flatness across frequency range ± 1.5 dB ± 1.5 dB

Noise Figure

Output power for 1 dB gain compression

<8.5 dB <11 dB (typical)

>+7 dBm (typical) ≥+12.5 dBm

HP 8447D

Preamp

(0.1 to 1000 MHz)

HP 8447E

Power Amp

4 DRAFT

Table 1 HP 8447D and HP 8447E Specifications

Operation and Service Manual

General Information

Specifications

Harmonic distortion

Typical output for <−60 dB harmonic distortion −30 dBm −20 dBm

VSWR, 1 to 1300 MHz

−30 dB for 0 dBm output (typi-

cal)

<2.0:1 Input

HP 8447D

Preamp

−30 dB for +8 dBm output

−−

HP 8447E

Power Amp

<2.2:1 Output

VSWR, 1 to 1400 MHz

−− <2.2:1 Input
<2.5:1 Output

Impedance 50 Ω 50 Ω

Reverse isolation

Maximum DC input voltage ±10 V ±10 V

Typical risetime 400 ps 420 ps

Typical group delay

Net weight 3 lbs 8 oz (1.59 kg) 3 lbs 8 oz (1.59 kg)

Option 001 3 lbs 14 oz (1.75 kg)

Option 010 3 lbs 1 oz (1.84 kg) 3 lbs 10 oz (1.64 kg)

>40 dB >40 dB

1.1 ns

a

1.5 ns

−−

b

Option 011 4 lbs 10 oz (1.64 kg)

Dimensions 8 1/2 in (216 mm) by 5-1/2 in (130 mm) by 3-3/8 in (85.8 mm)

Power Requirements 115 or 230 Vac ±10%, 48 to 440 Hz, 15 Watts, 27 VAmax

Environmental

Operation: 0
Storage:

°C to +55°C

−40°C to +75°C

−−

a. Variation over any 50 MHz band from 0.1-1300 MHz is typically <0.15 ns.
b. Variation over any 50 MHz band from 0.1-1300 MHz is typically <0.25 ns.

DRAFT 5

Operation and Service Manual

General Information

Table 2 HP 8447F Specifications

Specifications

Frequency range 0.1 to 1300 MHz 0.1 to 1300 MHz 0.1 to 1300 MHz 9 kHz to 50 MHz

Typical 3 dB bandwidth
(Std, Opt 001 and Opt 011)

Mean Gain (20° to 30°C) 25 dB minimum 22 dB ± 2.0dB 25 dB minimum 26 dB minimum

Gain flatness across fre­quency range

Noise Figure

Output power for 1 dB gain
compression

Harmonic distortion

Typical output for <−60 dB
harmonic distortion

VSWR, 9 kHz to 50 MHz

VSWR, 1 to 1300 MHz

Preamp Power Amp

.075 to 1700 MHz .075 to 1400 MHz .075 to 1700 MHz 6 kHz to 400 MHz

± 1.5 dB ± 1.5 dB ± 1.5 dB ± 2 dB

<8.5 dB <11 dB (typical) <8.5 dB −−

>+7 dBm (typical) ≥+12.5 dBm

−30 dB for 0 dBm

output (typical)

−30 dBm −20 dBm −30 dBm −2 dBm

−− −− −− <2.0:1

<2.0:1 Input
<2.2:1 Output

HP 8447F

(0.1 to 1000 MHz)

−30 dB for +8 dBm

output

−− <2.0:1 Input

Preamp Low Freq. Preamp

>+7 dBm (typical) >+15 dBm

−30 dB for 0 dBm

output (typical)

<2.2:1 Output

HP 8447F H64

(0.1 to 1000 MHz)

−35 dBc for +10

dBm output

VSWR, 1 to 1400 MHz

−− <2.2:1 Input

−−

<2.5:1 Output

Impedance 50 Ω 50 Ω 50 Ω 50 Ω

Reverse isolation

Maximum DC input volt­age

Typical risetime 400 ps 420 ps 400 ps

Typical group delay

Net weight 3 lbs 14 oz (1.75 kg) 3 lbs 14 oz (1.75 kg)

Option 001

>40 dB >40 dB >40 dB −−

±10 V ±10 V ±10 V ±10 V

−−

1.1 ns

a

1.5 ns

b

1.1 ns

a

−−

−− −−

6 DRAFT

Table 2 HP 8447F Specifications

Operation and Service Manual

General Information

Specifications

Option 010 4 lbs 1 oz (1.84 kg) 4 lbs 1 oz (1.84 kg)

Dimensions 8 1/2 in (216 mm) by 5-1/2 in (130 mm) by 3-3/8 in (85.8 mm)

Power Requirements 115 or 230 Vac ±10%, 48 to 440 Hz, 15 Watts, 27 VAmax

Environmental

Preamp Power Amp

Operation: 0
Storage:

−40°C to +75°C

HP 8447F

Preamp Low Freq. Preamp

°C to +55°C

a. Variation over any 50 MHz band from 0.1-1300 MHz is typically <0.15 ns.
b. Variation over any 50 MHz band from 0.1-1300 MHz is typically <0.25 ns.

Table 3 HP 8447F H64 Characteristics

Characteristics

Noise figure

9 kHz to 20 kHz
20 kHz to 100 kHz
100 kHz to 50 MHz

Typical mean gain (20° to 30°C)

Preamp Low Freq. Preamp

−−

−−

HP 8447F H64

<12.0 dB
<9.0 dB
<7.0 dB

28 dB

HP 8447F H64

DRAFT 7

Operation and Service Manual

General Information

Figure 1 Typical Preamplifier Performance Curves

8 DRAFT

Operation and Service Manual

General Information

Figure 2 Typical Power Amplifier Performance Curves

DRAFT 9

Operation and Service Manual

General Information

Options

The HP 8447D is a single preamplifier with BNC connectors. However, to pro­vide flexibility, three options are offered:

a Option 001 dual preamplifier, BNC connectors.

b Option 010 single preamplifier, Type-N connectors.

c Option 011 dual preamplifier, Type-N connectors.

The HP 8447E is a power amplifier with BNC connectors. One option is offered:

Option 010, Type-N connectors.

The HP 8447F is a preamplifier and a power amplifier with BNC connectors. One
option is offered:

Option 010, Type-N connectors.

Option H64, Two preamplifiers with Type-N connectors. This option is not offered in
conjunction with any other options.

NOTE: Dual amplifier option 010 is furnished with a rigid coaxial cable (W6), with

Type-N connectors, that can be used to cascade the amplifiers with minimum
loss. The option H64 dual amplifier is not supplied with this cable.

Instruments Covered by this Manual

This manual fully documents the HP 8447D, HP 8447E and the HP 8447F. Any
references in the manual apply to all three amplifiers unless otherwise noted.

Each amplifier has a ten digit serial number on the serial plate on the rear panel.
The first five digits of the serial number are a prefix. The contents of this manual
apply directly to instruments with the same serial number prefix as listed on the
inside title page.

Revisions required to adapt the manual to other serial number prefixes are con­tained in a yellow “Manual Changes” insert supplied with the manual. For infor­mation about serial number prefixes not listed on the title page or in the insert,
contact your nearest Hewlett-Packard office.

10 DRAFT

Operation and Service Manual

General Information

DRAFT 11

Operation and Service Manual

Receiving and Operating

Receiving and Operating

Initial Inspection

Mechanical Check

If damage to the shipping carton is evident, ask the carrier’s agent to be present
when the instrument is unpacked. Inspect the instrument for mechanical damage.
Also check the cushioning material for signs of severe stress.

Performance Check

The electrical performance of an amplifier should be verified upon receipt. Perfor­mance checks suitable for incoming inspections are given in the performance test
section.

Claims for Damage

If the instrument is mechanically damaged in transit, notify the carrier and the
nearest Hewlett-Packard field office immediately. A list of field offices is con­tained in the back of this manual. Retain the shipping carton and padding material
for the carrier’s inspection. The field office will arrange for replacement or repair
of your instrument without delay for claim settlements against the carrier. Before
shipment, this instrument was inspected and found free of mechanical and electri­cal defects. If there is any deficiency, or if electrical performance is not within
specifications, notify your nearest Hewlett-Packard sales and service office.

Preparation For Use

Power Requirements

The amplifier operates from 115 or 230 volt ac line voltages, at any line frequency
between 48 and 440 Hz. A slide switch on the rear panel is set to the correct posi­tion for the line voltage available.

Power Cable

To protect operating personnel, the National Electrical Manufacturer’s Associa­tion (NEMA) recommends that the instrument panel and cabinet be grounded. All
Hewlett-Packard instruments are equipped with a three-conductor power cable
which, when plugged into the appropriate receptacle, grounds the instrument. The

12 DRAFT

Operation and Service Manual

Receiving and Operating

offset pin on the power cable’s three-prong connector is the ground wire. The
power cord and power input connector meet the specifications established by the
International Electrotechnical Commission (IEC).

CAUTION: Always use the three-prong ac power cord supplied with this instrument. Failure to ensure

adequate earth grounding by not using this cord may cause instrument damage.

Mating Connectors

Mating connectors used with the amplifier should be 50 Ω type BNC male. If the
amplifier has the optional Type-N connectors, use Type-N male connectors that
are compatible with US MIL-C-39012.

Operating Environment

The operating range of the amplifier is from 0°C to +55°C. The amplifier can be
stored in a temperature range of

−40°C to +75°C.

Bench Use

The amplifier is equipped with plastic feet and tilt stand in place, ready for use as
a bench instrument.

WARNING: If this product is not used as specified, the protection provided by the equipment could

be impaired. This product must be used in a normal condition only (in which all means
for protection are intact).

Rack Mounting

The amplifier may be rack mounted by using an adapter frame. The adapter frame
is a rack frame that accepts several combinations of sub-modular units. For addi­tional information, address inquiries to your nearest Hewlett-Packard sales and
service office.

Storage and Shipment

Packaging

The following paragraphs contain a general guide to repackaging of the instru­ment for shipment. Refer to them for information about using the original packag­ing, or using other packaging.

DRAFT 13

Operation and Service Manual

Receiving and Operating

If the instrument is to be shipped to Hewlett-Packard for service or repairs, attach
a tag to the instrument identifying the owner and indicating the service or repair
required. Include the model number and full serial number of the instrument.

Original Packaging

If the original container is to be used, proceed as follows:

a Place instrument in original container. If it is not available, a suitable container can be

purchased from your nearest Hewlett-Packard sales and service office.

b Be sure the container is well sealed with strong tape or a metal band.

Other Packing Material

If the original container is not used, proceed as follows:

a Wrap the instrument in heavy paper or anti-static plastic before placing in inner anti-

static container.

b Place packing material around all sides of the instrument and protect panel face with

cardboard strips.

c Place instrument in a heavy carton and seal with strong tape. A double-wall carton

made of 200 pound test material is adequate.

d Mark shipping container; “Delicate Instrument. Fragile.”

Operating Instructions

Connect the line power cable to the three-prong rear panel socket and proceed as
follows:

a Select the line power to be used (115V or 230V) with the rear panel SELECTOR

switch.

b Connect the line power cable to line power and press the LINE switch.

CAUTION: The input to the HP 8447D/E/F and the HP 8447F Option H64 amplifiers is very

susceptible to damage from electrostatic discharge. Before connecting any coaxial cable to
the input jack of the amplifier, make certain that static electricity buildup in the cable is
completely discharged.

Do not apply power levels to the amplifier that are higher than the following:

HP 8447D: 0 dBm
HP 8447E: −10 dBm
HP 8447F preamp: 0 dBm
HP 8447F power amp: +10 dBm

14 DRAFT

Operation and Service Manual

Receiving and Operating

c Attach INPUT and OUTPUT cables.

CAUTION Power out of the HP 8447E and power out of the HP 8447F power amp can

exceed 100 mW. This may be enough power to damage sensitive circuits
connected to the OUTPUT.

Operator Maintenance

Operator maintenance is limited to replacement of the front panel LINE switch
light, the A1 power supply fuse, and the rear panel fuse. Clean the cabinet using a
damp cloth only.

Fuses

To replace the rear panel fuse (F1), remove the rear panel fuse knob and replace
the fuse (see rear panel for value of F1).

To replace the A1 power supply (A1F1) fuse, turn the instrument on its top. Lift
the tilt stand and remove the bottom cover. Replace the fuse on the A1 Power
Supply board (see parts list for the value of A1F1).

WARNING: For continued protection against fire hazard replace line fuse only with same type and

rating ([0.5A/250V]). The use of other fuses or material is prohibited.

Lamp Replacement

To replace the front panel line switch lamp (DS1), proceed as follows:

a Disconnect cord from rear panel receptacle.

b Pull the white cover portion of this switch from the instrument and then remove the

lamp from inside the cover.

c Replace old lamp with a new lamp (see parts list for part number of DS1).

d Place white cover into switch receptacle.

e Align tab on white cover with socket and push in.

WARNING: No operator serviceable parts inside. Refer servicing to qualified personnel. To prevent

electrical shock, do not remove covers.

DRAFT 15

Operation and Service Manual

Performance Tests Procedures

Performance Tests Procedures

Test equipment and accessories required to perform maintenance are listed in
Table 4. Equipment other than recommended models can be used provided the
minimum specifications are satisfied.

The performance tests assume the use of a standard amplifier with BNC connec­tors. If an amplifier with Type-N connectors is to be tested, suitable adapters will
have to be added to the equipment lists.

The performance tests and adjustment procedure cover all three amplifiers. Where
required, test steps list equipment settings, and other additional information, for
each amplifier. If a test step lists only one setting or specification, it is valid for all
three amplifiers. Disregard references to any amplifier not being tested.

Table 4 Recommended Test Equipment and Accessories

Instrument Type Minimum Specifications Suggested Model

Generator/Sweeper

Generator/Sweeper

Sweep Oscillator

Frequency Range: 0.1 to 110 MHz
Flatness:
Output Level:
Frequency Accuracy: 1%
Compatible with network analyzer

Frequency Range: 9 kHz to 50MHz
Flatness:
Output Level:
Frequency Accuracy: 1%
Compatible with network analyzer

Frequency Range: 0.1 to 1.3 GHz
Flatness: 0.7 dB over full range
Output Level:

Frequency Accuracy:
Compatible with network analyzer

±0.25 dB over full range

+10 dBm minimum

±100 kHz

±0.25 dB over full range

+10 dBm minimum

±100 kHz

+10 dBm minimum

±20 MHz

HP 8601A P,T

HP 3335A P,T

HP 8620A/8621A P,T

a

Use

(for testing
opt H64)

16 DRAFT