"AC0CC" wrote


I just acquired a RCA AR-88-F receiver in great condition. Can anyone
tell me exactly what the additional knob on the front labeled
"Diversity IF Gain" does?
Does this radio have basically the same circuit as the AR-88D?

***** Yes it does! The Diversity IF Gain control allows the gain of the IF
strip to be manually adjusted when three 88Fs are used in RCA
DR89,Diversity Communication Receiver.When used as a unit receiver,turn the
Diversity Gain control fully clockwise and leave it there.The rear panel
output terminals are slightly different between the models.

AR88F is covered in TM 11-880

Brian Goldsmith.