TB 9-6625-2303-35
Table 2. Minimum Specifications of Equipment Required - Continued
Common name
Minimum use
Manufacturer and model
(official nomenclature)
specifications
(part number)
Antenna Research Associates
RF POWER AMPLIFIER
Frequency range: 450 kHz to 1000 MHz
Inc., Model 757LC (757LC)
Power range: 0 to 80 W
(MIS-45845)
Accuracy of monitoring equipment
Frequency range: 450 kHz to 1000 MHz
RF POWER METER
Bird, Model 4421 (4421) w/
Power range: 7.5 to 85 W
directional power sensors,
Accuracy: ( 4%)
model 4021, 4022, and 4025
(4021, 4022, 4025)
Frequency range: 450 kHz to 1000 MHz
SIGNAL GENERATOR
(SG-1207/U)
Power output range: 100 mW
6. Preliminary Instructions
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure.
d. Unless otherwise specified, all controls and control settings refer to the TI.
7. Equipment Setup
WARNING
HIGH VOLTAGE is used or exposed during the performance of
this calibration.
DEATH ON CONTACT may result if
personnel fail to observe safety precautions.
REDUCE
OUTPUT(s) to minimum after each step within the
performance check where applicable.
power meter, RF power generator, signal generator, and digital multimeter to ON position
and allow equipment 30 minutes to warm-up.
b. Set factor switch to OFF position and mechanically zero TI meter.
of TI 50 Ω termination (part of TI). Digital multimeter will indicate between 48 Ω and 52 Ω.
