Expert Electronics' own document gives the command whole:
SPOT:RN6LHF,CW,7100000,16711680,ANY_TEXT;
16711680 is 0x00FF0000 — positive. This backend sent the same field as a SIGNED
32-bit value, from a third-party example: with the alpha byte set to FF for
opacity, 0xFFFFA500 becomes -22336, and a spot whose colour ExpertSDR cannot
read is dropped without a reply or an error.
Reported on ExpertSDR3 1.3, which speaks TCI 2.x — the protocol version was
never the problem, and my first reading of that report was wrong.
The first three spots are now logged verbatim: an ignored spot leaves no trace
whatsoever, so that line is the only evidence of what went out.
rouggy
47ddbed665