TB 9-6625-2155-35
Table 1. Calibration Description - Continued
Test instrument parameters
Performance specifications
Amplitude modulation:
7% of reading 3% of range
Meter accuracy
0 to 75%: 2.0 to 18.0 GHz
Depth
0 dBm maximum carrier level
10 Hz to 50 kHz: 3 dB bandwidth
Rates
30% depth
3
<10 kHz p-p : 30% modulation depth
Incidental FM
Frequency modulation:
7% of reading 3% of range
Meter accuracy
3 dB, 50 Hz to 2 MHz
Frequency response relative to a
100 kHz rate
10 MHz 50 kHz to 1 MHz modulation rate
Maximum deviation
10 MHz/V deviation range
<5%
100 kHz rate at 1 MHz peak deviation
Distortion
Rates <100 kHz; peak deviations <1 MHz
<5%
Incidental AM
1As
per CECOM specification.
2Calibrated
to -100 dBm ≤12.4 GHz, -90 dBm 12.4 GHz to 18 GHz.
3Procedure limitation (see text).
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set 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.
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure. The following peculiar accessory is also required for this calibration:
Mixer, RHG Model DM 1-18A (P/N 21-159-2).
Minimum use
Manufacturer and model
Common name
specifications
(part number)
ATTENUATOR SET
Range: 2 to 18 GHz
Weinschel, Model 9918 (9918)
(FIXED)
Accuracy: (See test report)
AUDIO ANALYZER
Range: 1.0 to 100.0 kHz
Boonton, Model 1121 (1121)
Accuracy: <2.0%
FREQUENCY
Range: 10 MHz
Tracor, Model 527E
DIFFERENCE METER
Resolution: 1 part in 10-8