TB 9-4931-535-24
Table 1. Calibration Description - Continued
Test instrument
parameters
Performance specifications
Noise
Resolution bandwidth
Average reading
setting
(dBm)
30 kHz
<-100
10 kHz
<-104
3 kHz
<-108
1 kHz
<-111
300 Hz
<-115
100 Hz
<-122
30 Hz
<-127
10 Hz
<-132
3 Hz
<-137
Low frequency response
Frequencies: Pwr line freq., 5 kHz, 100 kHz, 1 MHz, and 10 MHz
Accuracy: < -120 dBm
Local oscillator sideband
Spurious responses: < -80 dB
Harmonic distortion
Spurious responses: < -80 dB
Frequency range: 3 Hz to 30 kHz
Accuracy: 20% of BW settings at 3 dB points
Selectivity (shape factor): <11:1 (60 dB BW/3 dB BW)
Tracking generator flatness
Flatness: 0.7 dB
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 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 the calibration
procedure. The following peculiar accessory is also required for this calibration: Low Pass
Filter, Telonic Berkeley Inc., Model TLC 14-3EF.
Table 2. Minimum Specifications of Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
Frequency range: 1 kHz
Tektronix, Type SG505 (MIS-
Amplitude range: -20 dBm
30526/11)
Distortion: <90 dB
SYNTHESIZER/
Frequency range: 100 kHz to 40.1 MHz
Hewlett-Packard, Model
LEVEL GENERATOR
Amplitude range: -80 to +10 dBm
3335AOPT 001-K06 (MIS-
Accuracy:
0.075 dB
35958)
