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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
How much signal do I need ?
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<blockquote data-quote="dxsat" data-source="post: 386635" data-attributes="member: 193607"><p>It is perfectly possible to calculate dish size for a given signal strength. The trouble is- no one on this forum knows how. (prove me wrong!) This question has been asked before. You can run a formula, factor in the LNB's gain, efficiency of dish, noise temperature etc and come out with a figure. You would still have to add a bit more size for a safety margin to get you over the reception threshold for when it is wet, or the signal is down slightly for some reason.</p><p>Changes in the sun's activity, interference from other channels and atmospheric pollution can also reduce what you get on the ground.</p><p>The one thing you can say for sure is:-</p><p>-Your dish: Tecatel own brand dishes are not the best, with only average gain.</p><p>-From your other post on F/D ratios (I have added a reply), you probably need a better LNB and feedhorn.</p></blockquote><p></p>
[QUOTE="dxsat, post: 386635, member: 193607"] It is perfectly possible to calculate dish size for a given signal strength. The trouble is- no one on this forum knows how. (prove me wrong!) This question has been asked before. You can run a formula, factor in the LNB's gain, efficiency of dish, noise temperature etc and come out with a figure. You would still have to add a bit more size for a safety margin to get you over the reception threshold for when it is wet, or the signal is down slightly for some reason. Changes in the sun's activity, interference from other channels and atmospheric pollution can also reduce what you get on the ground. The one thing you can say for sure is:- -Your dish: Tecatel own brand dishes are not the best, with only average gain. -From your other post on F/D ratios (I have added a reply), you probably need a better LNB and feedhorn. [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
How much signal do I need ?
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