TB 9-6625-2351-35
EQUIPMENT REQUIREMENTS
4. Equipment
Required. Table 2 identifies the
specific equipment to be
used in this
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-287. 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 minimum use specifications
listed in table 2. The accuracies listed in table 2 provide a four-to-one ratio between the
standard and TI. Where the four-to-one ratio cannot be met the actual accuracy of the
equipment selected is shown in parenthesis.
5. Accessories Required. The
accessories required for this
calibration are common
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
Table 2. Minimum Specifications of
Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
ATTENUATOR
Range: 0 to 12 dB
Hewlett-Packard, Model 355C
Frequency: 50 MHz
(7910807)
ATTENUATOR (FIXED)
6 dB:
Weinschel, Model 9918-6 dB, Model
Frequency range: 50 MHz to 18 GHz 9918-10 dB and Model 9918-20 dB
Accuracy: 0.3 dB
10 dB:
Accuracy: 0.5 dB
20 dB:
Frequency range: 50 MHz to 18 GHz
Accuracy: 0.5 dB
Hewlett-Packard, Model 8902A
MEASURING RECEIVER
w/sensor modules Model 11722A and
Accuracy: 300 Hz
Model 11792A, microwave converter
dBm range: -9.7 to -10.3
Accuracy: 0.075 dBm
Wiltron, Model 68347M
Frequency response: 10 MHz to 18
GHz (referenced to 300 MHz) at 10
dBm
Accuracy:1
Range: 1000 Vdc
Fluke, Model 8840A/AF-05
Accuracy: 2 Vdc
(AN/GSM-64D)
Weinschel, Model 1870A (7916839)
POWER SPLITTER
Frequency range: 10 MHz to 18 GHz
Power range: -10 dBm
Accuracy:1
Frequency range: 10 MHz to 18 GHz
Wiltron, Model 68369NV
Power range: 0 to -15 dBm
Accuracy: 1.525 dBm
SYNTHESIZER/LEVEL
Frequency range: 9 kHz to 50 MHz
Hewlett-Packard, Model 3335AOPT
GENERATOR
Amplitude range: -80 to +10 dBm
001-KO6 (MIS-35938)
Accuracy: 0.02 dB per 10 dB step
Combined accuracy of measuring receiver and power splitter is 0.375 dBm.
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