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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
C-Band Reception, UK and Europe
Offset lnb on a PF ??
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<blockquote data-quote="Huevos" data-source="post: 887657" data-attributes="member: 301161"><p>I've got the circular polarized LNB central (because that is the one that gets attenuated the most). Linear LNB is on the east side of the dish as most linear sats are out west. No difference in signal with or without the offset LNB, and the offset LNB gets exactly the same SNR as the central one. But there is some strange interaction between the offset LNB and the Ku LNB on some sats. Offset LNB receives from 6.5º off centre so must be offset by 3.25º. Maybe this is a compromise but it is 100 times better than taking the plate in and out.</p><p></p><p>[ATTACH=full]65511[/ATTACH]</p><p>[ATTACH=full]65512[/ATTACH]</p><p>[ATTACH=full]65513[/ATTACH]</p><p>[ATTACH=full]65514[/ATTACH]</p></blockquote><p></p>
[QUOTE="Huevos, post: 887657, member: 301161"] I've got the circular polarized LNB central (because that is the one that gets attenuated the most). Linear LNB is on the east side of the dish as most linear sats are out west. No difference in signal with or without the offset LNB, and the offset LNB gets exactly the same SNR as the central one. But there is some strange interaction between the offset LNB and the Ku LNB on some sats. Offset LNB receives from 6.5º off centre so must be offset by 3.25º. Maybe this is a compromise but it is 100 times better than taking the plate in and out. [ATTACH=full]65511[/ATTACH] [ATTACH=full]65512[/ATTACH] [ATTACH=full]65513[/ATTACH] [ATTACH=full]65514[/ATTACH] [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
C-Band Reception, UK and Europe
Offset lnb on a PF ??
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