I use VB virtual cable, RSP1A, SDRUno and fldigi, listening to a transmitter feeding dummy load. Waterfall freq on fldigi drifted slightly on different days.
1. Is the decoded audio frequency NOT related to pc sound card and is slaved to rsp1a internal oscillator?
2. Hence, the drift i saw is combined effect of transmitter and RSP1A, right? I cannot receive wwv in door, so, cannot check rsp1a drift
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