"Michael E Fox - N6MEF" <n6mef@...>
I don’t understand the distinction you’re making since FX.25 = AX.25 + FEC.
But semantics aside, no such reluctance here since the intent is to move to higher speed which will necessitate replacing the existing equipment anyway.
I found a spec and a TAPR DCC presentation on FX.25 from 2006. But nothing current. And I can’t find any complete implementations either. So apparently this was just some experimentation that never went anywhere. Maybe the UDR is exactly what the inventor needs to revive the work.
I did send an email to the Stensat Group (who authored the protocol) to see if they’ve heard of the UDR and would be interested in implementing.
The holdup isn't a lack of FEC as such, but a reluctance on the part of the majority of packet operators to stop using perfectly good equipment and replace it with hardware/software options that support FX.25, which is an improved version of AX.25. If we could get past that point, it would be easier to get the faster speeds we want.