FT8 Launch

FT8
dsp
Author

Rob Bryan

Published

June 8, 2026

Challenge

I’m going to try to write my own FT8 decoder with:

  • An LLM tool in strict socratic mode where it will not write code or solve problems, but only ask questions.
  • Posts of status at 7:00 AM on Monday and Friday.

My solution will be independent from the canonical FT8 decoder in WSJT-X.

There’s at least one public python solution. I’ve seen it. I won’t look at it again during the challenge.

Note

If I find any other solutions, I’ll avert my eyes immediately.

Homemade graph of the signal to noise ratio on a frequency before, during, and after a shortwave broadcast from Romania

What does success look like?

At the outset, I’ll make a 20-minute reference recording of audio on the main JT8 frequency, 14.074 MHz, and decode that with WSJT-X.

To assess my solution, I’ll decode the same audio myself and compare the results.