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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
Costa Blanca, 2E/2F, seasonal signal fluctuation.
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<blockquote data-quote="Terryl" data-source="post: 889147" data-attributes="member: 369937"><p>What is the elevation on the dish/LNB for this satellite??</p><p></p><p>It could be a signal bounce that is caused be certain weather conditions, water or ground temperatures and atmospheric temperature variations from season to season. </p><p></p><p>This bounced signal would be 180 degrees out of phase from the main signal, when the bounced signal gets close to the right amplitude it will cause a drop in the main signal, this is called phase cancellation, and is a common in microwave signals, the bounce is determined by the elevation of the dish/LNB and what ever is causing the signal to bounce.</p><p></p><p>RF signals can bounce off things, just like Sun light bouncing off the heat of the road, thus causing a mirage in the road that looks like water, and it disappears when you get closer to it.</p></blockquote><p></p>
[QUOTE="Terryl, post: 889147, member: 369937"] What is the elevation on the dish/LNB for this satellite?? It could be a signal bounce that is caused be certain weather conditions, water or ground temperatures and atmospheric temperature variations from season to season. This bounced signal would be 180 degrees out of phase from the main signal, when the bounced signal gets close to the right amplitude it will cause a drop in the main signal, this is called phase cancellation, and is a common in microwave signals, the bounce is determined by the elevation of the dish/LNB and what ever is causing the signal to bounce. RF signals can bounce off things, just like Sun light bouncing off the heat of the road, thus causing a mirage in the road that looks like water, and it disappears when you get closer to it. [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
Costa Blanca, 2E/2F, seasonal signal fluctuation.
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