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<blockquote data-quote="clausius" data-source="post: 337677" data-attributes="member: 248624">Hallo.First here is a sketch of my setup:<img src="http://www.cockpit-italia.com/images/impianto-tv-sat.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /> The &quot;multi-switch&quot; is an EagleAspen DTV3x4 that should just do what i need: power both halves of the double LNB and select polH on one, and polV on the other thus receiving the whole band decoded in both polarization.Then the tension at the output (received by the decoder) selects which polarization is fed to it.Now my problem: not every possibile combination of channels on Decoder1 and Decoder2 does work.For example (i have standard SKY decoders and bouquet) 210 and 410 together won't go (actually sky sport 3 and Rai Sat Gambero Rosso, italian SKY).110,111,112 (FOX triad: fox, fox life, fox crime) on one decoder, and 210 on the other would.I first thought of a problem on one of the lines coming down from the LNB (maybe half LNB gone) but then, changeing which went where on the DTV3x4, everything remained the same. (interchanged between the 17V and 13V)So it should not be the LNB fried.But then what else could be?This setup should be able to drive a standard receiver in one room, and a SKY+ in another room.As it is now not even 2 outputs are indipendent, let alone three.Obviously, as well as sadly, using only one decoder everything works fine.What can i do?Thanks all.</blockquote>

[QUOTE="clausius, post: 337677, member: 248624"] Hallo. First here is a sketch of my setup: [IMG]http://www.cockpit-italia.com/images/impianto-tv-sat.jpg[/IMG] The "multi-switch" is an EagleAspen DTV3x4 that should just do what i need: power both halves of the double LNB and select polH on one, and polV on the other thus receiving the whole band decoded in both polarization. Then the tension at the output (received by the decoder) selects which polarization is fed to it. Now my problem: not every possibile combination of channels on Decoder1 and Decoder2 does work. For example (i have standard SKY decoders and bouquet) 210 and 410 together won't go (actually sky sport 3 and Rai Sat Gambero Rosso, italian SKY). 110,111,112 (FOX triad: fox, fox life, fox crime) on one decoder, and 210 on the other would. I first thought of a problem on one of the lines coming down from the LNB (maybe half LNB gone) but then, changeing which went where on the DTV3x4, everything remained the same. (interchanged between the 17V and 13V) So it should not be the LNB fried. But then what else could be? This setup should be able to drive a standard receiver in one room, and a SKY+ in another room. As it is now not even 2 outputs are indipendent, let alone three. Obviously, as well as sadly, using only one decoder everything works fine. What can i do? Thanks all. [/QUOTE]

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