Originally Posted by robk

Nobody cares if the new transponder works with the old
system. The concern is that AMB is getting ready to obsolete the old transponders, which we have invested in to the tune of hundreds of dollars, by dropping support for the old decoders. They are offering deals on upgrades to the new system, which will not use the old transponder. There is your clue. They are definitely planning to move on.

If they were just upgrading, the old transponders would work with the new system. I don't need the race director to know my esc is 125 *F