Low-cost DSP-based Amateur Radio Receiver
Not a product endorsement, but certainly an interesting design… have a look over at Tindie for a small HF receiver that microwavemont has built from an Si4735 DSP chip. It’s got a small OLED display and uses the Si4735 built-in demodulation of SSB to provide amateur HF reception of voice, CW and data modes. Other nice features are firmware written from the Arduino IDE (so you can modify if required) and a built-in LiPo battery charger. Check it out for some design inspiration: