TB 9-6625-2233-35
Table 2. Minimum Specifications of
Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
1
AUDIO ANALYZER
Range: 1 kHz ~1 V
Boonton, Model 1121 (1121)
Capability: Distortion measurements
Accuracy: <60 dBc (.1%)
Range: 105 to 125 V
General Radio, Type W10MT3AS3
(7910809) or Ridge, Model 9020A
(9020A) or Ridge, Model 9020F
(9020F)
Range: 10 mHz to 20 MHz
Fluke, Model PM6681/656
COUNTER
Accuracy: .0125%.
(PM6681/656)
Hewlett-Packard, Model 8902A
MEASURING
Modulation range:
(8902A) w/sensors, Hewlett-
RECEIVER
10 MHz carrier 1 kHz rage
Packard, Model 11722A (11722A)
100 kHz deviation
Accuracy:
1
Power range:
26.28 mV to 5.571 V rms
100 kHz to 4.999 MHz
Accuracy: 1%
Hewlett-Packard, Model 3458A
Range: -4.01 to 5.07 V dc
(3458A)
Accuracy: 0.35%
Range: 0.00194 to 7.74 V ac
50 Hz to 99.99 kHz
Accuracy: 0.5%
(OS-303/G)
Range: Rise/falltime: <3.5 ns
Amplitude:
Range: 5.8 mV to 19.5 V p-p,
Accuracy: 1.6% (2%)
TUNABLE ACTIVE
Range: 1 kHz, 200 Hz bandpass
Krohn-Hite, Model 3940 (3940)
FILTER
Accuracy: <72 dBc
1Combined
distortion <-47 dBc.
6. Preliminary
Instructions
a. The
instructions outlined in
paragraphs 6 and
7 are preparatory to the
calibration
process. Personnel should become familiar with the entire bulletin before beginning the
b. Items of equipment used in this procedure are referenced within the text by common
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. Additional
maintenance information is contained in TM 11-6625-3198-40 for this TI.
d. Unless otherwise specified, all controls and control settings refer to the TI.