[GreenKeys] Volpe clone demodulator board

[Harold Hallikainen]

On Thu, January 30, 2025 9:02 am, steve bennett via GreenKeys wrote:
>  How was this accomplished? Is it a firmware change or a hardware
> change?Thanks,-Steve

It's a hardware change. See
https://qrpbuilder.com/wp-content/uploads/2025/01/volpe_rtty_demodulator_x4_011925.pdf
. The VCO center frequency now allows for one of four pots to be selected,
and the loop gain can be set to two different values to change the shift.

Harold
https://w6iwi.org




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