Can someone confirm the satellite TX drift value against this satellite (as recording in SatNOGS) please?
4573ppb would imply the TX is off by 4.573ppm which would be 437.387 *4.573 => 2kHz?
The strong signal can be heard in the audio (not sure the exact nature of it) but it would appear to be terrestrial and not from the spacecraft itself (based on my interpretation of the waterfall shape).
I’ll have a bit more of a listen here locally to see if I can pick out the signal. It looks too close (and doesn’t sound right) to be the AFSK Mode U MSG transmitter.
Bali - agree. But there shouldn’t be anything terrestrial anywhere near that frequency according to the VK bandplan and furthermore - picking it up at the peak of the pass (even if only 23deg). Also doesn’t appear to align with a particular direction. I’ll need to go back and check the beamwidth of the yagi and see what we can work out. Agree - it looks terrestrial. Watch this space I suppose…
FWIW, when I copy KKS1, I have to tune about 2kHz ahead of where the freq is predicted to be in order for the tone to be pleasant to my ear. That might be personal Morse copying preference (and I’m not a professional morsekateer, so don’t make that mistake), but that’s in my notes for this particular bird.
I managed to get a signal overnight at the SatNGOS advertised frequency (i.e. +2kHz). Still need to hunt down that noise source (given how strong it appears to be).
