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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky
Losing channels on a frequent basis
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<blockquote data-quote="PaulR" data-source="post: 795676" data-attributes="member: 176256"><p>It's almost deffo the power supply. There's no BBC2 SW but BBC2 England and all the channels in the first quote (I didn't check the Discovery channels I'm afraid) are all horizontally polarised and BBC2 Wales is vertically polarised.</p><p></p><p>The LNB is switched between the two polarities by voltage. V is selected by a nominal 13v supply and H is selected when the voltage is upped to a nominal 18v. When a power supply is on its way out it just can't supply the necessary voltage for the H channels.</p><p></p><p>So, unless there's something very strange with your downlead or you have a very fussy LNB, it's the power supply.</p></blockquote><p></p>
[QUOTE="PaulR, post: 795676, member: 176256"] It's almost deffo the power supply. There's no BBC2 SW but BBC2 England and all the channels in the first quote (I didn't check the Discovery channels I'm afraid) are all horizontally polarised and BBC2 Wales is vertically polarised. The LNB is switched between the two polarities by voltage. V is selected by a nominal 13v supply and H is selected when the voltage is upped to a nominal 18v. When a power supply is on its way out it just can't supply the necessary voltage for the H channels. So, unless there's something very strange with your downlead or you have a very fussy LNB, it's the power supply. [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky
Losing channels on a frequent basis
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