Sound card calibration

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N4AU's picture
Last seen: 6 days 14 hours ago
Joined: 2008/06/19 - 17:41
Sound card calibration

Joe, will there ever be a way to calibrate the sample rate in sound cards in WSPR? Works fine for the FMT since all frequencies show the same "offset". For precise frequency calibration of the radio there seems to be enough error to move the frequency off slightly. Could this error be compensated for in the fmtave.out by adding or subtracting the soundcard difference before running fcal?