I noticed a carrier buried under the higher tone of the upper beacon. Only audible when the tone pauses . After listening for a while it turned into morse and i noticed it was keying SK0EN/B JO99JX. 
73, Martin
SK0EN/B audible on QO-100
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Hello Martin,
that is an interesting observation. According to the beacon website https://sk0en.se/ the beacon is not even qrv yet on 2.4 GHz yet. The transmission obviously occurs on 2400,5 MHz. At the moment I can not determine how any of the other listed beacon frequencies could produce such a signal. It is worth to further investigate.
Vy 73
Holger ‚Geri‘, DK8KW
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The frequency is quite logical, though unfortunate: SM lost their lower segment of 13cm and now only have some section above 2400 MHz. I will try to contact somebody over there, if only to suggest using an LHCP antenna for the beacon
/michael, oh2aue
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Well, if they just qsy up 1 khz, the beacon will still be heard by qo-100, but in the clear. You can always check if the beacon is operational, even if your rx on 13cm is crappy or if you are out of range
.Now it is of interest what power and antenna they use. Maybe we hear a sidelobe.
The goonhilly websdr seems to have a strong carrier exactly on the upper beacon higher tone, thus can not resolve SK0EN/B . IS0GRB can.
73, Martin
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Talked to one of the SK0EN chaps and they will shift the beacon up to 2400.800 MHz.
In the meantime it is QRT until then.
Somewhat sadly, my LHCP proposal didn't take fire
/michael, oh2aue
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The old QO-100 bandplan is still floating around on the internet (narrowband uplink: 2400.050 - 2400.300 MHz). I think the club chaps weren't aware of the transponder band expansion or the unusual nature of the transponder in general.
Easy mistake to make I think
/michael, oh2aue
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Hi all,
Easy mistake to make I think
plus, I guess, a lot of people don’t even realize how sensitive the QO-100 RX really is. Signals of way less than 1 Watt ERP are still detectable despite the 36.000km uplink distance
.Vy 73
Holger ‚Geri‘, DK8KW
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And thanks to Martin, DM4IM for documenting and reporting this in the first place
/michael, oh2aue
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The old QO-100 bandplan is still floating around on the internet (narrowband uplink: 2400.050 - 2400.300 MHz). I think the club chaps weren't aware of the transponder band expansion or the unusual nature of the transponder in general.
Easy mistake to make I think
Hi Michael,
actually IARU has been informed about this when the proposal came to move terrestrial into the satellite bandplan.
Unfortunately someone ignored it or underestimated the impact.
73s Peter
