Re: HAB predictions
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As others have said, the predictor accuracy is often mainly limited by the user inputs (e.g. ascent rate, burst altitude and sea-level descent rate), and how closely your flight actually achieves these.
In particular, your burst altitude is going to play a big part in this. If you are not using a well-characterised balloon, then calculators like sondehub.org/calc/ will not be good at estimating this.
As for your RTTY code, I suggest digging into code from a known-good tracker like this: https://github.com/RoelKroes/TBTracker/blob/master/Misc.ino#L35
This also has code to add a CRC16 to the end, which is pretty important with a mode without error correction like RTTY...
On Thu, Mar 16, 2023 at 7:59 PM Steve G8KHW / AJ4XE <steve@...> wrote: