Using a Pi SBC with Shortwave Radio

BUTTERWORTHON-16DIP-SOC-5New Orleans Coast Guard weather fax operates at 4.317  4.344 MHz, so it is far outside of the default (7 MHz CF) filter bandpass of the BPF that I have in the little sidecar SDR.

Currently, there is no bandpass filter switching arrangement within the sidecar, so I have to swap the different 14 pin dip sockets in and out as I change bands (each DIP is loaded with the correct combination of components for the frequencies I wish to use).  It’s  a little inconvenient to do it that way …

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