TB 9-6625-2059-24
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Power meter..........................................................
DE MOD signal ...................................................
MM-100E multimeter ..........................................
Power supply ........................................................
Final procedure.....................................................
IDENTIFICATION AND DESCRIPTION
This bulletin provides instructions for the
1. Test Instrument Identification.
calibration of Radio Test Set, AN/GRM-114A (IFR, Model FM/AM-1100S).
The
manufacturers' manuals, TM 11-6625-3016-40-1, and TM 11-6625-3016-20-1 for AN/GRM-
114A were used as the prime data sources in compiling these instructions. The equipment
being calibrated will be referred to as the TI (test instrument) throughout this bulletin.
a. Model Variations. None.
b. Time and Technique. The time required for this calibration is approximately 8
hours, using the dc and low frequency and microwave technique.
2. Forms, Records, and Reports. Forms, records, and reports required for calibration
personnel at all levels are prescribed by TB 750-25.
3. Calibration Description. TI parameters and performance specifications which
pertain to this calibration are listed in table 1.
Test instrument parameters
Performance specifications
Range: 100 Hz to 999.9999 MHz1
Accuracy: 0.00005% (10 to 999 MHz)
5 Hz (1 to 10 MHz)
<100 Hz peak
Range: -35 to -90 dBm
Residual FM
Accuracy: 2.5 dB to 199.9999 MHz
Output level
4.0 dB from 200 to 399.9999 MHz
V x 100
6.0 dB from 400 MHz and above
Range: 0 to -35 dBm relative to 0 dBm indication
HI LVL
Accuracy: 2.5 dB, 20 kHz to 199.9999 MHz
4.0 dB from 200 to 399.9999 MHz
6.0 dB from 400 MHz and above
Range: -75 to -120 dBm
Norm2
Accuracy: 2.5 dB to 199.9999 MHz
4.0 dB from 200 to 399.9999 MHz
6.0 dB from 400 MHz and above
See footnotes at end of table.