Observation 128245: ITUPSAT 1 (35935)

Regarding Observation 128245

Good signal but not CW?

Jup. Seems to be the



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Some satellites transmit CW through FM. I don’t know if that’s the case here or just a broken transmitter that splatters, but the audio does sound like some CW keying is going on.

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Hmmm… The quality isn’t very good… But CW? Hmmm…

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It is CW. You can check previous observations where the drifted transmitter is selected and the signal is more centered and audible.

For example check observation 126845 which repeats “ta1ks itupsat hr”.

EDIT: and I’ve just realized that the drifted one is for GFSK19k2. We need to add a new transmitter for drifted CW too in https://db.satnogs.org/satellite/35935/. Feel free to suggest it.

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Regarding Observation 144850 …Many of these 19k2 are actually FM CW decoded by Corey’s station 2 during this pass https://network.satnogs.org/observations/144008/