TB 9-4920-358-35
Table 1. Calibration Description - Continued
Test instrument
Performance specifications
parameters
+(percent of reading plus digits)
Pretrigger amplitude: > 1.5 V; pulse width: 1.0 to 2.0 s
MODE 4
Interrogation video amplitude:
(TTL level) Low < 0.3 V, High > 2.4 V;
Pulse width: 0.3 to 0.7 s
Receiver reference code, emergency
Proper ACCEPT/REJECT operation
and I/P
Power supply
TP1 to chassis ground: 0.0 +50 mV dc
TP2 to TP1: +12.0 +0.5 V dc
TP3 to TP1: +5.0 +0.25 V dc
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. Where the four-to-one ratio cannot be met, the
actual accuracy of the equipment selected is shown in parenthesis.
usage accessories, issued as indicated in 4 above, and are not listed in this calibration
procedure. The following peculiar accessory is also required for this calibration: Circulator,
P/N 7916840 (5985-01-217-0286).
Minimum use
Manufacturer and model
Common name
specifications
(part number)
Range: 0 to 12 V dc
Fluke, Model 8840A/AF/05
Accuracy: +1%
(AN/GSM-64D)
PEAK POWER METER
Range: 0 to -10 dBm
Wavetek, Model 8502A (8502A)
Accuracy: +0.25 dBm
w/power detector, Wavetek, Model
16934 (16934)
RADAR TEST SET
Input:
(AN/UPM-155)
Frequency: 1030 +.05 MHz
Power level: 0 to -10 dBm
Received pulse range: 0 to 3907 ms
Accuracy: +3%
Output:
Frequency: 1080 to 1100 MHz
Accuracy: +0.01%
Pulse source, range: 0 to 1 s
Power level: 0 to -10 dBm
Timebase: .1 s to 4 ms +.01%
Amplitude: 0 to 5 V dc +3%
CHANGE 1
