FiFi SDR

FiFi SDR and sound card @192kHz sample frequency.

The effective bandwidth of the FiFi SDR / sound card combination is 125kHz, because of limitations in the ASUS XONAR U7 MKII sound card. Most sound cards have the same limitations of higher noise level and lower gain at the band edges. That limits the dynamic range at the band edges. For the 60m and 30m band this is not affecting the in-band performance. The 125 kHz effective bandwidth is too small for the 40m band. The interface to the websdr is 16-bits and the full dynamic range is available.

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