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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="Vipersan" data-source="post: 887630" data-attributes="member: 325666"><p>Not the prettiest of projects ..and wasn't expecting a great deal ..</p><p>but am being pleasantly surprised atm..</p><p>Late post I know ..but it took hours to cast and shape a clamp to fit Christinas 15mm copper plumbing tripod ..</p><p>Cast in liquid plastic shaped sliced and drilled ..and is now on the tripod allowing a second cband lnb to be fitted as close to focus as is practical.</p><p>This _may_ have a detrimental affect on the signal arriving at the prime lnb as it _will_ cast a shadow ..</p><p>Nonetheless I can only try ..</p><p>Currently have my old Pauxis as the second lnb and getting better than expected circular results.</p><p>The idea is ..assuming all goes well...to have a linear lnb at the focus ..and a circular lnb offset.</p><p>The reason for doing it this way around is that polarisation and skew become irrelevant to the offset lnb....but critical for the linear at the focus.</p><p>No adjustments have been attempted ..</p><p></p><p>It's dark and it's late...but early results look promising.</p><p>Just scanned 40 West with the Pauxis RHCP ..</p><p>3600 to 4200</p><p>Number of transponders locked with the TBS card =25</p><p>No easy task mounting a second lnb on a PF ...but I'm pleased with the results..</p><p>A quick photo from my bathroom window ..(you can just about make them out)</p><p>Better pics tomorrow..</p><p>the lnb is mounted to the west of the Prime LNB ..</p><p>Since theres's only really Linear sats at the western end of the arc ...this seemed advantageous as it will also extend my reach Eastward if all goes well and give me back 62 and 64 East ..maybe...?</p><p>Easily 12 degrees offset ..LHCP 40 west results to follow ...and I'm using my crappiest lnbf and just thrown up for now..</p><p>rgds</p><p>VS</p></blockquote><p></p>
[QUOTE="Vipersan, post: 887630, member: 325666"] Not the prettiest of projects ..and wasn't expecting a great deal .. but am being pleasantly surprised atm.. Late post I know ..but it took hours to cast and shape a clamp to fit Christinas 15mm copper plumbing tripod .. Cast in liquid plastic shaped sliced and drilled ..and is now on the tripod allowing a second cband lnb to be fitted as close to focus as is practical. This _may_ have a detrimental affect on the signal arriving at the prime lnb as it _will_ cast a shadow .. Nonetheless I can only try .. Currently have my old Pauxis as the second lnb and getting better than expected circular results. The idea is ..assuming all goes well...to have a linear lnb at the focus ..and a circular lnb offset. The reason for doing it this way around is that polarisation and skew become irrelevant to the offset lnb....but critical for the linear at the focus. No adjustments have been attempted .. It's dark and it's late...but early results look promising. Just scanned 40 West with the Pauxis RHCP .. 3600 to 4200 Number of transponders locked with the TBS card =25 No easy task mounting a second lnb on a PF ...but I'm pleased with the results.. A quick photo from my bathroom window ..(you can just about make them out) Better pics tomorrow.. the lnb is mounted to the west of the Prime LNB .. Since theres's only really Linear sats at the western end of the arc ...this seemed advantageous as it will also extend my reach Eastward if all goes well and give me back 62 and 64 East ..maybe...? Easily 12 degrees offset ..LHCP 40 west results to follow ...and I'm using my crappiest lnbf and just thrown up for now.. rgds VS [/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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