On 2006-10-16 20:46:59 +0100, Adrian said:



I did take a look in the loft, and the joints between the dish coax
and the downlead in the walls are simply 'wrapped & insulating tape' -
maybe there's a cock-up there ??
\

Ah.... They've used cable that was in the wall?

There is a pretty good chance that this is TV coax. This cable is
basically ****e and is marginal for UHF TV which has a frequency range
up to about 900MHz. The frequencies used between LNBs and receivers
go to around twice that and the effect will be signal loss and possibly
cable reflections etc.

The LNB cable should be CT100 and it should be home run all the way to
the receiver.