LNB output - Sig strength / Quality

Michael_Myers

Hi,

Should the outputs of a quad LNB have the same Signal Strength Quality ?
I have aligned my dish and I am getting the following:

Output 1
Sig strength 90%
Sig quality 80 %

Output 2
Sig strength 40%
Sig quality 30 %


I have tried outputs 3 and 4 also but they are similiar to output 2.

Anyone got any ideas ? faulty LNB ?

Thanks !!

steveon

You will never get exactly the same from all outputs in my opinion but you should try and adjust the Skew of the LNB i.e. twist its postion...usually 5 settings...mite need a philips screwdriver depending on the type of quad you have...

Grovel

Sorry not to answer, only to supplement the question ...
I have a working dish with single LNB (for FTA), but signal quality is a bit marginal due to a tree in line of sight on the satellite. I am tossing a coin between attempting an upgrade to Sky+HD or getting UPC. I was wondering whether moving from the single LNB to a quad would degrade the signal, making the dish useless.
So the question is ... "should all the outputs on a quad match the output on a single, or should I expect to see degraded signal across the 4 outputs?"
The other consideration is that the current single LNB must be nearly 10 years old, so would a brand spanking new quad offer some benefits (newer electronics sending better signal to the box).

steveon

If your dish is looking into trees and you are experiencing problems then its more than likely that upgrading to sky hd would not be a worthy idea unless you could perhaps relocate the dish somewhere away from the trees or perhaps on a pole to raise it against the line of the trees.

Grovel

steveon wrote: »

If your dish is looking into trees and you are experiencing problems then its more than likely that upgrading to sky hd would not be a worthy idea unless you could perhaps relocate the dish somewhere away from the trees or perhaps on a pole to raise it against the line of the trees.

Thanks.

Sadly I think the trees may push me down the NTL/Chorus/UPC avenue. At least they just launched a HD service ... but will lay a bet that it will not be available in my area.

watty

The level can vary a bit. But on the same channel the quality will be very similar or you have a faulty tuner or cable or LNB.

Only compare by switching cable at the LNB, If there is more than 10% quality difference get a replacement LNB.

Level is nearly irrelevant.

Martin_F

I'd have thought that a larger dish might also help in a through tree situation. If the LNB is 10 years old - does that mean the dish & cabling is too? I'd think the condition & quality of all the components will contribute overall to signal strength/quality - and could become more important than usual when the line of sight is compromised.