TB 9-4920-358-24
Table 1. Calibration Description - Continued
Test instrument
Performance specifications
parameters
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
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
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; 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 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 parentheses.
5. Accessories Required. The accessories required for this calibration are common
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).
Table 2. Minimum Specifications of Equipment Required
Manufacturer and model
Minimum use
Common name
specifications
(part number)
MICROWAVE
Range: 1030 MHz
Anritsu, Model MF2414B003
(MF2414B003)
Range: 0 to 12 V dc
Hewlett Packard, Model 3458A
Accuracy: 1%
(3458A)
PEAK POWER METER
Range: 0 to -10 dBm
Wavetek, Model 8502A (8502A)
Accuracy: 0.25 dBm
w/power detector, Wavetek, Model
16934 (16934)
(AN/UPM-155)
RADAR TEST SET
Input:
Frequency: 1030 0.05 MHz
Power level: 0 to -10 dBm
Received pulse range: 0 to 3907 ms
Pulse width & pulse spacing accuracy:
1 count or 0.05 sec (whichever is
greater)
Output:
Accuracy: 0.01%
Pulse source, range: 0 to 1 s
Power level: 0 to -10 dBm
Timebase: 0.1 s to 4 ms 0.01%
Amplitude: 0 to 5 V dc 3%
Frequency: 1090 MHz
Aeroflex, Model 2023B (2023B)
RF level: 0 to -6 dBm