Quote Originally Posted by Knuckx View Post
OK, that's expected behavior then. No problem.


No, the BER is consistently 0. Certain combinations of transponders tuned simultaneously seem to cause picture blocking/garbage on one of the channels - for example NHK World HD (11225 V) and Channel 4 HD (12168 V) - though the BER shown in the OSD is 0 when this occurs. I get 863 services on a scan of 28.2E. I'm now suspecting my LNB is the problem and that the two halves of the LNB are interfering with each other, as the corrupted EPG has only occurred when I have been using the box when the OpenTV download has run.
I had the certain combinations of frequencies causing problems thing with my Zgemma H7S.

I assume that an oscillator (VFO) in one tuner leaks into the other tuner a bit and causes problems with weak signals on a certain frequency that depends on what the other tuner is tuned to.

I was able to fix it by using a pair of Labgear CM5220 satellite signal boosters and a pair of short cables with F connectors on the ends.
The CM5220 seems to have been discontinued, but there are other similar ones on eBay like:
Code:
https://www.ebay.co.uk/itm/153544214896 or
https://www.ebay.co.uk/itm/270468117287
Shorter or better quality cables from the LNB, or an LNB with a stronger output, might be alternative solutions.