Probably most of you will already know, Direwolf will support FX.25. This is AX25 with forward error correction. Nice.
The mail John, WB2OSZ posted on the mail list.
What can you do if your radio signal isn’t quite strong enough to get through reliably?
Move to higher ground? Get a better antenna? More power?
Send data very very slowly with narrow bandwidth?
Sometimes those are not options.
Another way to improve communication reliability is to add redundant information
so the message will still get through even if small parts are missing.
FX.25 has been used for more than a decade with some satellites.
Receiving implementations were oriented toward that niche application.
Now that FX.25 is easy to use, integrated into a general purpose TNC,
many other AX.25 based applications can gain the benefits while retaining
complete compatibility with older equipment.