fix(sat): changing satellite mid-pass moves the radio to it

Two birds are often up at once, and switching between them left the frequencies
on the first. The selection on the page is the DISPLAY's; the tracker held its
own name and went on following whatever it was started with. The way through was
to stop tracking and start it again, which is how it was found — and which is
also how a Flex throws away and rebuilds both its slices for no reason.

RetargetSatelliteTracking changes what is being followed without letting go of
the radio or the rotator. Everything derived from the old satellite is cleared so
the next step sets it afresh: the frequencies, the mode on both slices (set once
per satellite, not per tick), the antennas and the CTCSS tone — the new bird may
be U/V where the old one was V/U, which swaps which slice sits on which band.

And it happens at once rather than at the next tick. The loop gained a wake
channel: a second of the previous satellite's frequencies is a second of the
wrong pass, and the antenna would otherwise wait for the new bird to drift a
step away from where the old one happened to be.

Selecting a satellite with the radio idle is unchanged — a look, not a command.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
This commit is contained in:
2026-09-09 23:05:07 +02:00
co-authored by Claude Opus 5
parent 3ac6f7e49c
commit 37b798e9f5
5 changed files with 92 additions and 3 deletions
+4 -2
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@@ -6,13 +6,15 @@
"The Doppler correction was wrong — by a factor of about 250, and in the wrong direction. The SGP4 library reports a range rate that is not one: the ISS closing at 5.5 km/s came back as +2036 km/s, which moved a 2 m downlink two megahertz instead of three kilohertz, and moved it the wrong way. OpsLog now measures the range rate from the range itself, which cannot disagree with physics. A 2 m downlink shifts about ±3.5 kHz across a pass and a 70 cm one about ±10 kHz, as they should.",
"FlexRadio, satellite: the per-band antennas you configured are now applied to the satellite slices. They were not — the entry form applied them on a band change, to the active slice, and a pass never goes through that path. The two slices are on two different bands, so each gets its own: the downlink takes the receive antenna for its band, the uplink the transmit antenna for its. On a station with transverters (XVTA on 2 m, XVTB on 70 cm) the downlink was left on whatever the radio last used, and heard nothing.",
"FlexRadio, satellite: on an inverting transponder the uplink is set to LSB and the downlink to USB, instead of USB at both ends. The passband is turned over, so audio transmitted on the wrong sideband comes back through it upside down — which is every attempted contact on FO-29, RS-44 and AO-73.",
"FlexRadio, satellite: the CTCSS tone is set on the uplink slice from the satellite's frequency plan. An FM bird does not answer without it, and it is the one setting an operator cannot reach from the front panel once a pass has started."
"FlexRadio, satellite: the CTCSS tone is set on the uplink slice from the satellite's frequency plan. An FM bird does not answer without it, and it is the one setting an operator cannot reach from the front panel once a pass has started.",
"Changing satellite while tracking now moves the radio to the new one at once, and the antenna with it. The selection on the page was the display's; the tracker held its own and went on following whatever it was started with, so with two birds up at the same time the frequencies stayed on the first — the only way through was to stop tracking and start it again. The radio stays armed through the change, so a Flex no longer throws away and rebuilds both its slices for nothing."
],
"fr": [
"La correction Doppler était fausse — dun facteur denviron 250, et dans le mauvais sens. La bibliothèque SGP4 renvoie une vitesse radiale qui nen est pas une : lISS se rapprochant à 5,5 km/s était rapportée à +2036 km/s, ce qui déplaçait une descente 2 m de deux mégahertz au lieu de trois kilohertz, et dans la mauvaise direction. OpsLog mesure désormais cette vitesse à partir de la distance elle-même, ce qui ne peut pas contredire la physique. Une descente 2 m se décale denviron ±3,5 kHz sur un passage et une 70 cm denviron ±10 kHz, comme il se doit.",
"FlexRadio, satellite : les antennes par bande que vous avez configurées sont désormais appliquées aux tranches satellite. Elles ne l’étaient pas — la fenêtre de saisie les appliquait au changement de bande, sur la tranche active, et un passage ne passe jamais par là. Les deux tranches sont sur deux bandes différentes, donc chacune reçoit la sienne : la descente prend lantenne de réception de sa bande, la montée lantenne d’émission de la sienne. Sur une station à transverters (XVTA en 2 m, XVTB en 70 cm), la descente restait sur ce que la radio utilisait en dernier, et nentendait rien.",
"FlexRadio, satellite : sur un transpondeur inverseur, la montée est mise en LSB et la descente en USB, au lieu dUSB des deux côtés. La bande passante est retournée : une audio émise sur la mauvaise bande latérale revient à lenvers — soit tous les QSO tentés sur FO-29, RS-44 et AO-73.",
"FlexRadio, satellite : la tonalité CTCSS est réglée sur la tranche de montée depuis le plan de fréquences du satellite. Un satellite FM ne répond pas sans elle, et cest le seul réglage quun OM ne peut pas atteindre en façade une fois le passage commencé."
"FlexRadio, satellite : la tonalité CTCSS est réglée sur la tranche de montée depuis le plan de fréquences du satellite. Un satellite FM ne répond pas sans elle, et cest le seul réglage quun OM ne peut pas atteindre en façade une fois le passage commencé.",
"Changer de satellite pendant le suivi déplace désormais la radio sur le nouveau immédiatement, et lantenne avec. La sélection de la page était celle de laffichage ; le tracker gardait la sienne et continuait de suivre celui avec lequel il avait démarré, donc avec deux satellites en passage simultané les fréquences restaient sur le premier — il fallait arrêter puis relancer le suivi. La radio reste armée pendant le changement : un Flex ne jette plus ses deux tranches pour les reconstruire inutilement."
]
},
{