MIL-PRF-49185B(CR)
pulse modulation signals of any frequency of 1 kW peak power, 1 µs duration, 0.001 duty cycle,
with a rise time of 10 ns from 10-90% amplitude.
3.5.2.7 Spurious response. The ratio of desired signal response to any spurious response
shall be as follows:
a. For a maximum of 6 discrete responses, the ratio shall be at least 80 dB.
b. For all other responses, the ratio shall be at least 100 dB.
3.5.3 Terminal section (system requirements).
3.5.3.1 Input impedance. The impedance at the video input to the transmitter shall be 91
ohms ± 10% resistive to at least 480 kHz and 91 ohms ± 15% to at least ± 800 kHz.
3.5.3.2 Output impedance. The output impedance of the receiver shall be 51 ohms + 10%
resistive for the 24 channel PCM output to at least 800 kHz and for the regenerated 6/12 channel
PCM output such that when terminated in a resistive load of 91 ohms ± 5%, the waveform is as
specified in 3.5.3.7.1.
NOTE: All received RF signal levels are measured at the antenna terminals of the duplexer.
3.5.3.3 Frequency response (PCM). The overall frequency response between transmitter
video input and receiver video output relative to the response at 10 kHz shall conform to Table
III.
TABLE III. Frequency response (PCM).
Relative attenuation (dB) ref 10 kHz
Frequency
Optimum
Minimum
Maximum
10
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business