[Milsurplus] AFSK RATT on AN/URC-32 > 2000 or 2550 Hz center?

Nick England navy.radio at gmail.com
Wed Sep 16 22:22:51 EDT 2020


I'm resurrecting a URC-32B, and will probably mainly use it for USB voice.
But I might hook it up for RATT operation too. As far as I can tell from
the manual, AFSK transmit it at 2000 +/425 cps, while receive tone is 2550
+/-425 cps. This makes it compatible with the AN/URA-8() RATT converters.
How was the URC-32 used with the CV-483 (URA-17) converters which have a
2000cps center freq? Does the BFO work in FSK receive?

Cheers,
Nick England K4NYW
www.navy-radio.com
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