Alan BA1DU et al,

While monitoring HO-68 with my RFSpace SDR-IP on the 20:57 UTC pass tonight at the lower end of the passband I was very surprised to see what looked like a FM signal. After tuning in I am able to hear someone with what sounds like an English accent! It was definitley coming from the satellite, as it was affected by the same doppler shift as the SSB signals coming from it.

It sounds like the users in question have no idea they are causing QRM, they certainly aren't calling satellite, however do sound like amateurs and not pirates or commercial traffic. Taking doppler into account on the downlink, I calculate that the users were transmitting around about 145.925MHz

Did anyone else notice this?

I have an IQ recording, if anyone is interested in having a look I could try to shrink it small enough to send - there are no callsigns at any time during the short 5 minute recording. Also, my receive antenna doesn't currently track, so the signal is quite weak for most of the pass.

73

MI3EPN Pete