TB 9-6625-2094-24
Table 1. Calibration Description - Continued
Test instrument parameters
Performance specifications
RF output
Range: -137 to +13 dBm
Accuracy:
1.25 dB, -7 to 13 dBm
1.95 dB, -7 to -77 dBm
2.75 dB, -77 to -137 dBm
Flatness
Range: -7 to 13 dBm
Accuracy:
0.75 dB ref 50 MHz
Meter
Range: 10 dBm
Accuracy:
0.5 dB at 50 MHz
Attenuators
Range: -130 to +10 dBm
Accuracy:
0.5 dB to 70 dBm ( 0.2 dB cal error)
l dB to 130 dBm ( 0.5 dB cal error)
Amplitude modulation
Range: 0 to 90%
Accuracy:
(5% +5% of Full Scale) at 1 kHz
Internal frequency
Range: 400 Hz and 1 kHz
Accuracy:
5%
Distortion
Accuracy:
<3% to 70%
<5% to 90%
Frequency modulation:
Frequency
Range: 400 Hz and 1 kHz
Accuracy:
5%
Deviation
Range: 0 to 10 kHz and 0 to 100 kHz
Accuracy:
500 Hz on X1 range
5 kHz on X10 range
Distortion
Accuracy:
<2%, 10 kHz to 100 kHz deviation at 1 kHz
<4%, 3 kHz to 10 kHz deviation at 1 kHz
1Specification
change authorized.
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286, 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
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 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
calibration procedure.
