TB 9-6625-2151-24
Table 1. Calibration Description - Continued
Test instrument
Performance specifications1
parameters
Range: 20 Hz to 110 kHz
Accuracy: 20 to 99,999 Hz ........0.005%
100 to 110 kHz .........0.012%
Level (output)
Range: -40 dBm to +10 dBm
Flatness:
20 to 200 Hz ......... 1.0 dB
0.2 to 15 kHz ......... 0.2 dB
15 to 85 kHz.......... 0.5 dB
85 to 110 kHz........ N/A
Distortion
-50 dB at 1004 Hz and 0 dBm
Filters:
Range: 0 to 100 dBm
Hold circuit
Range: 24 mA
Accuracy: 0.5 mA
Peak-to-average
Range: 0 to 120 P/AR units
Accuracy: 2 P/AR units from 30 to 110 P/AR units
ratio
Filter response: -30 dBm at 300 Hz
0 dBm at 1000 Hz
-10 dBm at 2300 Hz
1Performance
specifications do not apply to TI supplemental characteristics.
accuracy checked to 1 Hz at 200 to 9999 Hz and 10 Hz above 9999 Hz because of TI resolution.
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-286, AN/GSM-287, and AN/GSM-705. Alternate items may be
used by the calibrating activity when the equipment listed in table 2 is not available. 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
calibration procedure. The following peculiar accessories are also required for this
calibration: BNC to phone plug (WECO 310), Pomona Electronics Model 2798 or equivalent,
2 required and 600 feedthrough termination.