47,7° East Eutelsat Quantum

[s-band]

I checked it with the big antenna. The 12523 H and 12702 H clearly come from this position. The 12702 H could be telemetry or the beacon. I don't know what the other signal is. Interestingly, I discovered two new signals on 12215 and 12226 H. But I can't unlock it at the moment.

I think that the X is probably BPSK as the CS display flips phase randomly where it should show just 2 positions. Usually, if you just run it for a short time you'll only see the 2 positions of BPSK. It may be a TT&C beacon but I can't look at the moment.

 

[hvdh]

In this recent (2022) pdf, the high flexibility of Quantum is described in more detail.
All sorts of up/downlink combinations are possible, including frequency reuse.
So indeed, the entire 10.7...12.75 GHz band may be used.

https://scdn.rohde-schwarz.com/ur/pws/dl_downloads/premiumdownloads/premium_dl_brochures_and_datasheets/premium_dl_miscellaneous/04_SatIndDays_3_Voigt_Andreas_EUTELSAT_QUANTUM_-_RS_Satellite_Industry_Days_2022_1.pdf

 

[dreamsat]

The first picture is from this morning and by noon the two transponders can be received again like yesterday.

 

[satesco]

In this recent (2022) pdf, the high flexibility of Quantum is described in more detail.
All sorts of up/downlink combinations are possible, including frequency reuse.
So indeed, the entire 10.7...12.75 GHz band may be used.
...

10872 V,62000,1/4,S2- Data, new. RollOff of 0.05 also indicates the presence of the S2X extension.
11363 V,4200,3/4,32AOSK-GS, new. Maybe someone will confirm this mux; I am not sure about it.
Searching in the lower band, I discover an active mux with appearances like those that have been active for longer. So a full Ku-band search is recommended.
After doing the first time (#503) tests on 47.7E with neumoDVB with inconclusive results, I returned to muxes with a symbol rate of 133000. This time the spectrum looks a bit better, but without correctly finding and locking the two muxes-11790 H and 12020 V, the two muxes with a symbol rate of 62000.
It is amazing how fast it scans 6903x at 47.7E on Linux, about 7 min; unlike Crazyscan under Windows, it seems to take an "eternity."
Interesting that neumoDVB finds a lot of beacons but without a correct identification of muxes with a high symbol rate (133000).

 

[dreamsat]

I can confirm the 10872 H. I can't receive anything on vertical.

 

[adonis1]

Also I'm getting 10872 H 61900, for first time