TB 9-6625-2323-35
Table 1. Calibration Description - Continued
Test instrument parameters
Perform specifications
Pulse modulation
Pulse rate:
DC to 10 MHz unleveled
100 Hz to 5 MHz leveled
Pulse on/off ratio:
Range: 10 MHz to 40 GHz1
Accuracy: > 80 dB
< 10 nS
Rise/fall time:
< 10%
Overshoot:
Amplitude modulation:
10 MHz to 40 GHz1
Depth:
Range: 0 to 90%3
Accuracy: 10 % of setting
Incidental PM:
< 0.2 radians 30% AM depth. 10 kHz mod freq
Modulation frequency response:
Range: DC to 10 kHz
Accuracy: <0.3 dB
Frequency modulation:
Range: 100 MHz (DC to 100 Hz mod rate)4
Unlocked FM mode:
Accuracy: 5%
Range: 10 MHz (DC to 8 MHz mod rate)5
Accuracy: 5%
Locked FM Mode:
Range: The lesser of 10 MHz or Fmod X 300
(1 kHz to 8 MHz mod rate)6
Incidental AM:
< 2%7
Modulation Frequency Response:
Range: 3 kHz to 8 MHz8
Accuracy: <1 dB
1Not
verified above 18 GHz.
2Verified
to 90 dB.
3Verified at 50% depth, 1 kHz mod freq., 5 GHz carrier frequency.
4Verified at .1 Hz mod. rate, 100 MHz deviation.
5Verified at 100 kHz Mod rate, 240 kHz deviation.
6Verified at 1 kHz to 8 MHz mod rate, 240 kHz deviation.
7Verified at 500 kHz deviation, 200 kHz mod frequency.
8Verified from 3 kHz to 50 kHz.
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.
