Jerry,
Would the following make sense then (software mods and Si5351 i2c bus address aside for now):
- $37 Elektor SDR board?
SDR board RF input connected after the first IF filter (or before?), uBitx Si5351 clocks #0 and #1 disabled (2nd IF and BFO off), 192kHz I/Q audio out to Teensy audio input with modded SDR software.
Tx chain as standard uBitx.
So many toys, so little time.
73, John (VK2ETA)