[aprssig] D710 Scanning stops on TX

[Robert Bruninga]

> I found unacceptable.  But since it's a bug, then I'll
> know to at least wait for the next set of radios to
> ship with the bug fix before I consider getting one.

The fix will simply be a new firmware upload to the radio.  This
one is field upgradable.  Takes only a few minutes to do.

Bob