Thank you Ed!
The LNB arm is fixed with some kind of plastic, but you are right, I am going to try to remove this plastic thing and move the arm up/down and see if I can get any signal improvement, I'll give another try to the LNB skew too…
I'll keep you informed, thank you for your help!!
Stay safe!
73, Nicolas
Hello Ed,
Unfortunately there is no way I can access the dish form the front, I am thinking to move it to the roof as soon as the sanitary emergency ends and see if I can get the signal any better…
Thanks Robert!
It's now 13V, I've checked adjusting it between 11V and 14V with no change and sight is free…
How wide was your AZ/EL search pattern? Some OMs optimize on a sidelobe of their antenna. With non-optimal feeds, these sidelobes can be sometimes misleading.
I'll give another try, thanks.
Thanks again to all of you!!
I am using standard 75Ω sat coax cable, approximately 10 meters from the dish, Televes bias tee and a MeanWell MDR-60-12 as power supply. I've tried feeding the LNB with 18V, most of the signal fades away that way.
My money would be on non-optimal alignment.
I've tried azimuth, elevation, skew, several times, it seems to me that it's the best I can get…
Wrong polarization?
I am feeding the LNB with 13V, supposed to be vertical polarisation…
Anyway, I'll keep searching how I can improve this…
Thanks!!
So what do you reckon, there is no way I can see the transponder noise floor with my 80cm dish, is it a poor LNB or bias tee problem? Maybe both?
Thanks!
Nicolas EA4GQY
Thank you to all of you for the answers!
Unfortunately here there is no way I can see the transponder noise floor, using G4JNT's SignalToNoise I get 44dB in 1Hz for the CW beacon…
Hi,
I am completely new to QO-100 and I am starting for now with the receiving part.
I am using a 80cm offset dish with an Octagon Single LNB Green, adalm-pluto & SDR Console.
It's working fine but reception is quite weak compared to the Goonhilly Es'hail-2 Narrowband WebSDR.
The best I can get adjusting my antena orientation and LNB skew is a around 30dB signal-to-noise ratio on the lower CW beacon.
¿Is this SN reasonable?, ¿what could I do to improve it?
Thanks for your help.
Nicolas EA4GQY
