.. and there are definitely no beacons on that frequencies.. the beacons for the AMSAT P4-A transponders are generated on the ground as part of the LEILA-2 system 
These a most likely ghost signals at even multiples of internal references. 10450 MHz is integer multiple of 25 MHz.. same is 10500 MHz.
does anyone know the nature of this signal?
11,200 H @ 26 ° E
ok thanks, maybe this is it?
http://frequencyplansatellites…pe-Africa-MiddleEast.html
Here are already the beacon frequencies from EH2
vy73
So the enginering beacon @ 10706 MHZ looks today at my 85cm TV dish, OCTAGON LNB OTSLO (tcxo), RTL-SDR(tcxo) 24.2east SDR#
73 de dg0opk
Hi,
I was also able to receive the EB and after some more tweaking this evening with my DiSEqC Motor to 24°E, I've got some nice signal on my 80cm dish with an unmodified Octagon Optima OSLO PLL Single LNB ..
More stable than I thought and for someone who is used to a lot of Doppler shift from the LEO's, this frequency drift is no problem for the beginner (SSB) et all.
It probably needs to be observed how the frequency will be under more severe weather conditions.
(the frequency axis is 5 kHz per line, i.e. 30kHz between the sidebands with the carrier in the middle)
So, don't worry if you haven't modified your LNB yet. I might do that later next year when the weather is better, but that's not urgent..
73s Peter
I also wasn't too disappointed by the stability of my PLL LNB (a much cheaper StarCom SR-3602, about 8 euro including shipping from China).
Not good enough for digital modes but for SSB during quiet weather and with the hand on the dial it should so, better than LEO sats!
In the meantime I have ordered an SR-3604 (4 outputs) to convert it to external LO injection, much more convenient to use one of the extra F connectors than to fix some extra input to this one.
Receiving engineering beacons on 10706 and 11205 with 85cm Offset, Octagon OSLO (9.75 GHz), Nooelec NESDR Nano, Raspberry Pi 3+, 7" Touchdisplay, Software GQRX
My little P4-A station
Engineering beacon at 10706 MHz
Engineering beacon at 11205 MHz
Waiting for first signals
Here is my rx setup:
on the left the PC with the drift controller on top which keeps the signal stable on frequency.
on the right the PC for the demodulation with speaker on top.
My sat dish is not properly aligned to the sat so the signals are weaker.
Does someone know what signals cause those "lines" every few khz in the spectrum as seen in DL3CWS second pic?
vy73
Db8TF
Does someone know what signals cause those "lines" every few khz in the spectrum as seen in DL3CWS second pic?
If you mean the lines at +- 15 Khz: that is the engineering telemetry. The carrier in the signal is the residual carrier, as the beacon is BPSK modulated .. maybe not with +-90 deg phase phift (as the carrier would be non existing then) but something like +- 60 deg.
No, i mean those many weaker signals across the frequency.
Maybe some DTV signal from another sat?
They appear on my spectrum also...
vy73 de DB8TF
I cannot see them here.. try a check and see if the signals are gone if you put your hand in front of the LNB. Powerful test to see if signals come from a satellite or from your setup.
The lines are result of taking screenshots with my smartphone. In real there are no lines on the screen.
DB8TF perhaps refers to something like this?
This signal is present on several frequencies, with different amplitudes, and is received both vertically and horizontally.
73, Lucio
P.S. @26°E
I will try to find the source of that signals in the next days.
If i disconnect the LNB from power the signals are still present,
so think ist something from a local source, PC (USB?) or similar.
Vy73 de
DB8TF
Hello everyone, I received the beacon on 10706 MHz. By moving the antenna, the signal would disappear completely.
It's here: https: //www.youtube.com/watch? V = EHRXIKqH_wE
73 from Charly hb9adj
Charly,
cannot see at the link you posted. There's something wrong.
Regards.
Alex
Hello Alex,
I do not know why the link does not work. You can find the video by searching on youtube "hb9adj" This is the last video posted.
