Jim & all,
I think you mean it should be 10.136 USB; to get signals centred on
137.5kHz to an audio output of 1.5kHz, the carrier should be at 136.0kHz
That is the way I do it with my 4.0MHz local osc converter....4.136 USB on
the receiver dial.
73, Gary - G4WGT.
----- Original Message -----
From: "James Moritz" <[email protected]>
To: <[email protected]>
Sent: Thursday, February 02, 2012 9:31 PM
Subject: Re: LF: New to group
Dear Bob, Graham,
I think you mean it should be 10.136 USB; to get signals centred on
137.5kHz to an audio output of 1.5kHz, the carrier should be at 136.0kHz
Also, when using a converter, it would be worth checking the frequency
accuracy of the 10MHz conversion oscillator - it should be no more than a
few 10s of hertz out if there is not to be serious mis-alignment beteen
the expected and actual received frequencies, considering the slower Op32
"band" is only 100Hz wide. The RX frequency can be offset slightly to
compensate for an error in the converter frequency (or for an error in the
RX frequency, for that matter...).
Cheers, Jim Moritz
73 de M0BMU
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