General Servicing and Aligment Procedures
36
(7) Set the noise generator RANGE switch to 0 – 10.
(8) Adjust the noise generator output level control until a reading of 20mW is ob-
tained on the output meter.
(9) The noise factor of the receiver is given by the noise generator meter reading for
the range in use.
(10) Perform noise factor tests at 1
.
5, 3, 6, 12 and 24 Mc/s, the noise level should not
exceed 7dB throughout the entire frequency range.
Summary of Contents for RA-117
Page 1: ...Racal RA 117 Radio Receiver...
Page 24: ...Detailed Circuit Description 24 at maximum is the correct calibration maintained...
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Page 70: ...Illustrations 70...
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