Greetings,
Can the sound card sample rate be adjusted in WSPR for calibration purposes? Most other ham sound card programs have a seting for this, to eliminate the error of a particular sound card. For example, if the desired sample rate is 48Khz, and the sound card has an actual error rate of 10 PPM, the adjusted sample rate would be 48000.48 or 47999.52 depending on the direction of the error.
73's,
John