The Simple SDR Receiver from Simple Circuits make a great monitor receiver (1.8 - 18MHz) for WSPR and WSJT modes.
Simple SDR Firmware Mods
- main.h
- main.c
- Make pointers to filters so we can switch filters by switching pointers.
- Serial.c
- Changes to add B vfo and make command/response closer to Elecraft K2. It should be possible to
add enough rig control code to allow WSJT-X to control the Simple SDR directly.
- FIR_Coefficients.c
- New filters! 6.1kHz, 2.7kHz+, 2.1kHz+, 2.1kHz centered at 1250Hz, 1.7kHz centered at 1300Hz, 800Hz CW. + = rising response to help with muffled SSB audio.
