TB 9-6625-2124-35
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Sets AN/GSM-287, or AN/GSM-705. Alternate items may be used by the
calibrating activity. The items selected must be verified to perform satisfactorily prior to
use and must bear evidence of current calibration. The equipment must meet or exceed the
to-one ratio between the standard and TI. When the four-to-one ratio cannot be met, the
actual accuracy of the equipment selected is shown in parenthesis.
usage accessories issued as indicated in paragraph 4 above and are not listed in this
calibration procedure. The following peculiar accessories are also required for this
calibration: Directional Coupler, Narda, Model 3095 (3095); and Semiconductor Device
(Crystal Detector), Hewlett-Packard, Model 423AOPT03 (7923182).
Common name
Minimum use
Manufacturer and model
(official nomenclature)
specifications
(part number)
ATTENUATOR (FIXED)
Range:
10 dB
Weinschel, Model 9918-10dB
Accuracy: Determined in procedure
(9918-10dB)
AUTOTRANSFORMER
Range: 108 to 125 V ac
General Radio, Type
Accuracy: 1%
W10MT3AS3 (7910809) or
Ridge, Model 9020A (9020A), or
Ridge, Model 9020F (9020F)
FREQUENCY COUNTER
Range:
10.0 ms to 50 MHz
Fluke, Model PM6681/656
(PM6681/656)
Accuracy: 0.05%
MEASURING RECEIVER
Range: 0 to -70 dB
Hewlett-Packard, Model 8902A
7.5%
w/sensors, Hewlett-Packard,
Accuracy:
Model 11722A (11722A) and
11792A (11792A), and
Range: 0.850 to 18.0 GHz
microwave converter, model
0.0625%
Accuracy:
11793A (11793A)
Hewlett-Packard, Model 5352B-
MICROWAVE FREQUENCY
Range:
5 MHz to 18 GHz
001 (5352B-001)
COUNTER
Accuracy: 5 X 10
-6
Range:
-40 to +20.0 V dc
Hewlett-Packard, Model 3458A
Accuracy: 0.01%
(3458A)
Range:
Dc to 10 ms
(OS-303/G)
POWER METER
Range: -6.5 to + 10 dBm
Hewlett-Packard, Model
Accuracy: 6%
E12-432A (MIS-30525)
w/thermistor mount,
Hewlett-Packard, Model
H75-478A (7915907) or
8478B (8478B)
SPECTRUM ANALYZER
Range:
1 to 4 GHz
(AN/USM-677)
