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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
Astra 2G: Scandinavia & Baltics Reports
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<blockquote data-quote="archive10" data-source="post: 1000495"><p>Excellent results! Nice to see some good trial-and-error approach.</p><p>Especially since those petalised dishes (I've had one) are really difficult to get proper performance from on Ku-band.</p><p>(and they rust like the devil - do apply lots of grease or similar, especially to the stand!)</p><p></p><p>But you will get almost instant improvement if you try an LNB with a feed-horn that matches the f/D of the prime-focus dish.</p><p>I assume you are using the LNB in your profile, and that LNB is designed for offset-dishes with an f/D of about 0.6.</p><p>The Jonsa/FortecStar/xxxx dish you have had an f/D of about 0.36 AFAIR.</p><p>This means that the LNB you are using are only really seeing under 40-50% of the dish (!)</p><p></p><p>Using either a P/F feed-horn + C120-based LNB (Inverto Black Pro for example) or an integrated one (Golden Interstar 209P) will give you a couple of dB more.</p><p></p><p>This may be just what you are looking for...</p><p></p><p>[ATTACH=full]102387[/ATTACH]</p><p>(from <a href="http://www.satclub.pl/golden-interstar-gi-209p-t735.html" target="_blank">Golden Interstar GI-209P : Pasmo Ku</a>)</p><p></p><p>As a comparison, I receive everything from 28.2-5x on a 120cm plastic dish near hässleholm.</p><p>You should be getting everything too with a 180, even a petalised one (if assembled well).</p></blockquote><p></p>
[QUOTE="archive10, post: 1000495"] Excellent results! Nice to see some good trial-and-error approach. Especially since those petalised dishes (I've had one) are really difficult to get proper performance from on Ku-band. (and they rust like the devil - do apply lots of grease or similar, especially to the stand!) But you will get almost instant improvement if you try an LNB with a feed-horn that matches the f/D of the prime-focus dish. I assume you are using the LNB in your profile, and that LNB is designed for offset-dishes with an f/D of about 0.6. The Jonsa/FortecStar/xxxx dish you have had an f/D of about 0.36 AFAIR. This means that the LNB you are using are only really seeing under 40-50% of the dish (!) Using either a P/F feed-horn + C120-based LNB (Inverto Black Pro for example) or an integrated one (Golden Interstar 209P) will give you a couple of dB more. This may be just what you are looking for... [ATTACH=full]102387[/ATTACH] (from [URL='http://www.satclub.pl/golden-interstar-gi-209p-t735.html']Golden Interstar GI-209P : Pasmo Ku[/URL]) As a comparison, I receive everything from 28.2-5x on a 120cm plastic dish near hässleholm. You should be getting everything too with a 180, even a petalised one (if assembled well). [/QUOTE]
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Astra 2G: Scandinavia & Baltics Reports
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