[R-390] R-392 calibrator

Wed, 5 Nov 2003 06:56:30 -0500

The calibrator generates an unmodulated carries (CW) therefore you're only
going to hear a tone when the BFO is on, or when there is a signal present,
coinciding with the calibrator frequency and heterodyning with it,
effectively acting as a BFO.

73, Meir WF2U
South Carolina

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Paul H. Anderson
Sent: Tuesday, November 04, 2003 10:47 PM
To: [email protected]
Subject: [R-390] R-392 calibrator

I'm working on an R-392 where the calibrator puts out a carrier wave that
I can use the BFO to find at every 100KC, but with the BFO off, I hear no
audio tone.  What part of the circuit is supposed to generate the approx
1kc tone?  I've heard this calibrator tone before on other R-392's.

Thanks,

Paul

_______________________________________________
R-390 mailing list
[email protected]
http://mailman.qth.net/mailman/listinfo/r-390