QRSS is a very low-speed and low-power radio mode. It is meant to be “decoded” by looking at the spectrogram.

  • https://swharden.com/blog/2020-10-03-new-age-of-qrss/
  • https://swharden.com/qrss/plus/
  • https://groups.io/g/qrssknights
  • https://swharden.com/qrss/74/