Sustainable Radio Design V2

Related articles:

• Proper Single Transistor LNA for HF
• A Sustainable Radio Design?

We are finally going to build a QSD RX!

Here is the rough schematic I am thinking about:

References:

• https://www.n6qw.com/MC1496.html

• https://github.com/steve-m/hsdaoh-rp2350 (see internal_adc section)

  This way we can continue using RP2350 instead of moving to something like STM32H5 immediately

• https://github.com/dawsonjon/PicoRX/tree/master/simulations (also for DSP code)