Dish or LNB or cables?

kyeev

I've a quad LNB connected to an 80cm dish (prime focus on freesat/astra).
Dish is starting to have small spots of rust on it.

Cable 1: Grundig freesat box tells me >90% on strength and quality. Never fails to have a signal
Cable 2: TV feed 1 tells me >70% quality, never fails to have a signal
Cable 3: TV feed 2 tells me >70% quality except when it starts raining, drops to 15%
Cable 4: intermittently works on certain channels.

Weird bit. When I turn on a saorview box, whose cable runs intertwined with grundig freesat cable, it can effect the TV feed 2.
(I can switch between feed 1 and feed 2 on the TV by recording one channel and watching another channel).

So my question is, is it the LNB on the fritz? or the dish or the cables?

The Cush

As regards the differences in signal quality it could be down to the separate outputs on the LNB - water ingress/internal fault, the cable quality/length/bends/water ingress/damage, cable connectors - how good the connections are made to the cable and how secure they are to the LNB/receiver.

The first and cheapest option is to check the LNB feedhorn cover for damage. Water ingress into the LNB can affect 1,2 or all of the LNB's outputs by killing an output or the entire LNB completely or reducing it performance. Also check the cables, connectors and connections for the faults I mentioned above.

If all looks good with LNB, cables etc. I'd go with an LNB change, they're not that expensive.

Klopp

I had similar issues before and after checking cabling, connections it was the LNB.

kyeev

Thanks guys.
I think I'll go with a new LNB.

Any good brands or are they all much the same?

Tony

Most are pretty good these days but i'd suggest something like smart titanium or inverto

kyeev wrote: »

Any good brands or are they all much the same?