Re: Does anybody know how to calibrate CEC firmware ?

Adrian Chadd
 

On Fri, 8 Nov 2019 at 09:22, Adrien F4IJA <@Adrien_Grelet> wrote:

OK so the Set calibration is used for the Master calibration upon frequency and BFO for the decoding of signals if I'm right?
The BFO needs calibrating to make sure the signals you're trying to
receive are in the passband of the IF filter.

That's why you can calibrate it quickly by looking at your audio
output and just looking for the noise passband. The filters vary board
to board, so the BFO calibration can't be to a specific frequency - it
is a frequency based on what the matched crystals in your ~12MHz
filter centre on.


-adrian
(kk6vqk)

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