lnb central positioning
- Thread starter aerosmith
- Start date
william-1
Feed Hunter
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That all depends on the dish elevation on the 100cm Gibertini I find that just below center of the dish gives the best signals whereas the 88cm mesh dish is dead central.
My 88cm dish is almost vertical @ 1 west but the Gibertini is
elevated aiming at the sky by about 10 degrees higher than the 88cm.
My 88cm dish is almost vertical @ 1 west but the Gibertini is
elevated aiming at the sky by about 10 degrees higher than the 88cm.
Reason being as I got that freeby I reconditioned but only had part of the lnb holder remaining. So I've managed to mod another holder. Ive had with good results just wondering if I could better it slightly as not quite centralised (slightly below center of dish vertically). Something I've never looked at before.
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Getting the focal length and position spot is always going to get the best out of the dish.
As your lnb holder is not a matched one specific to your dish why not have a play around with the positioning and see if signal improves.
As your lnb holder is not a matched one specific to your dish why not have a play around with the positioning and see if signal improves.
Going to give it atry later on today. Not easy to explain this one but the holder I've put on the arm I've bolted at the top of the arm. So therefor one idea is to put small springs underneath the holder where the bolts I've put on go through so adjusting the each bolt individually will make the holder position itself either more to the center or downwards or upwards if you can follow what I mean. A long shot but nothing to lose!
TBH it is not easy to visualize all this. But, firstly, LNB on the offset dish should be pointed lower than center of the dish. Secondly, leaning of the dish is dependent on chosen satellite and offset angle of the dish. And, finally, best LNB-holder is that one which can be adjusted in all dimensions, something like this one (IMHO)
To be honest I've seen so many peoples different opinions on exact positioning ie centre or very slightly below centre etc I've have just gone for a trial and error basis to acheive best sig results. All my installed sats have seen a sig increase so I'm quite happy (some alot more than others).