Atec 4391A User Manual
E-mail: sales@bird-electronic.com • 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.)
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