Xref: utzoo rec.ham-radio:3619 sci.electronics:1878
Path: utzoo!utgpu!water!watmath!clyde!rutgers!ames!aurora!labrea!Shasta!kaufman
From: kaufman@Shasta.STANFORD.EDU (Marc Kaufman)
Newsgroups: rec.ham-radio,sci.electronics
Subject: Re: Use a VLF rcvr to decode TV's secondary audio programming
Keywords: SAP, subcarrier, television, tv
Message-ID: <2411@Shasta.STANFORD.EDU>
Date: 19 Jan 88 05:48:23 GMT
References: <2547@ihuxz.ATT.COM>
Reply-To: kaufman@Shasta.stanford.edu (Marc Kaufman)
Distribution: na
Organization: Stanford University
Lines: 13

In article <2547@ihuxz.ATT.COM> parnass@ihuxz.ATT.COM (Bob Parnass, AJ9S) writes:

>   Instead of using my TV, I just tuned my ICOM R7000 to the
>   191.775  MHz channel 9 WBFM audio carrier, then connected
>   my ICOM R71A receiver to the R7000's  RECord  jack.   The
>   R71A was set to the NBFM mode at 78 KHz.

An easier way to do it with that pair, is to take the 10.7 MHz IF from
the R7000 and feed it to the converter input of the (in my case IC751).
Then tune to 10.778 in NBFM.
The rejection of the main channel is not as good, though.

Marc Kaufman (kaufman@Shasta.stanford.edu)