The hard part of satellite tuning is not the arithmetic, it is deciding
who owns the dial. A tracker that forces both frequencies fights the
operator every time they turn the knob to follow a station across a
linear transponder; one that never touches the receiver leaves them
chasing a signal that slides nine kilohertz across a 70 cm pass.
So the operator owns the receiver and the tracker follows them. Every
second it asks the radio where the receiver actually is. Where it put it,
nothing has changed. Further than a dial-turn's tolerance, and the
operator has chosen a station: what they landed on is converted back into
a nominal frequency, and the transmitter is derived from that. Which is
the division of labour on a linear bird — the operator listens, the radio
does the sums.
Three ways to reach the radio, because a satellite pair is a shape of
operating rather than a manufacturer's feature. An IC-9700 or IC-9100 is
asked for its OWN satellite mode: it pairs main and sub, gives full
duplex, and keeps the dials linked the way its designers meant, which is
always better than an imitation built out of split. A Flex gets two
slices, A the downlink and B the uplink, created when missing, because
"slice B does not exist" is not something to make an operator fix at the
start of a ten-minute pass. Everything else gets the downlink, and is
told so — half the job announced beats half the job hidden.
What goes in the log is the NOMINAL pair. Two stations working each other
through a transponder read different numbers off their dials at the same
instant; the only figure they can both agree on is the transponder's own.
FREQ is the uplink and FREQ_RX the downlink — the one place a satellite
QSO differs from every other kind, and the reason FREQ alone cannot
describe one.
Every setting is per profile, amplifiers included — that is the whole point of
one profile per station. But the amplifier clients were built once at startup
and again only when Settings was saved, so switching profile left them on the
previous profile's port. An operator with an SPE on COM9 for HF and another on
COM10 for 6 m had to open Settings and press Save after every switch. Save is
not a connect button; switching profile is what asks for that hardware.
The amplifier is what was reported, but it was never alone: the motorized
antenna, the Antenna Genius and the Tuner Genius are configured the same way and
were started in the same two places. All four now restart on a profile switch,
asynchronously, exactly as a save does.
Rotators were already correct — their client is built per command rather than
held open, so they read the active profile every time.
Unconditional, like a save: comparing each device's configuration across
profiles to skip a reconnect would trade a second of downtime for the chance of
missing one. A test now keeps the two lists in lockstep — anything started at
boot must be re-applied on a profile switch or be named, with its reason, as
something that must not be.
rouggy