TB 9-6625-2337-35
Table 1. Calibration Description - Continued
Test instrument
parameters
Performance specifications
VAR LEVEL:
Amplitude:
0.0 to 5 V
Pulse Width:
.025 to 2.0 s
≤ 0.1 s
Rise Time:
≤ 0.15 s
Fall Time:
75 Ω
GTC Long
modulation:
Width:
0.5 0.1 s
Spacing:
15, 30, 60, 120, 240, and 480 s 5% from Mode 4
GTC trigger or from P3 pulse of an SIF challenge.
GTC Short
modulation:
Width:
0.5 0.1 s
Spacing:
15, 65, 115 and 165 s 5% from Mode 4 GTC
trigger or from P3 pulse of an SIF challenge.
MEASUREMENT:
Pulse Width
and pulse
Accuracy:
1 count or 0.025 s whichever is greater
spacing:
Counter:
Range:
Main & Aux RF I/O: 960 to 1200 MHz
Low Power in:
12 to 1200 MHz
Accuracy: 10 kHz or 0.02%, whichever is greater
Power:
Range:
Main & Aux RF I/O: 25 W or less to 75 W CW
25 W or less to 10 kW Pulsed
Low Power in: 10 mW to 25W CW or Pulsed
Accuracy:
0.5 dB
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.
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 required. Crystal Detector
Hewlett Packard Model 423A (POS), DC Power Supply HDL, Elgar, Model DCS40-30EM1-2
(13589313), and Power Amplifier JcAir (15-0777-M0).