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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky+ HD
Splitting feed From Dish to watch SKY+
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<blockquote data-quote="Analoguesat" data-source="post: 249222" data-attributes="member: 176362"><p>If you have only one feed, then you will get horribly confused as the tuners fight for dominance. An lnb is controlled by voltage switching for the horizontal / vertical polarization, (14/18 volts switching) and a tone burst for high band low band.</p><p></p><p>An lnb has 4 possible states:</p><p></p><p>tone on / voltage low.</p><p>tone on / voltage high.</p><p>tone off / voltage low.</p><p>tone off / voltage high.</p><p></p><p>Voltage high (horizntal?) will always override voltage low channels (vertical?) and tone on will always override tone off. So if you are watching a channel that happens to be voltage high, tone on, then no matter what the second tuner is trying to do, you cannot watch any channel in any other state apart from another channel v high, tone on. Unless you keep a list of all channel states, you will get most frustrated when you cannot watch 75% of the other channels.</p><p></p><p></p><p></p><p></p><p>Either do without or move house.</p></blockquote><p></p>
[QUOTE="Analoguesat, post: 249222, member: 176362"] If you have only one feed, then you will get horribly confused as the tuners fight for dominance. An lnb is controlled by voltage switching for the horizontal / vertical polarization, (14/18 volts switching) and a tone burst for high band low band. An lnb has 4 possible states: tone on / voltage low. tone on / voltage high. tone off / voltage low. tone off / voltage high. Voltage high (horizntal?) will always override voltage low channels (vertical?) and tone on will always override tone off. So if you are watching a channel that happens to be voltage high, tone on, then no matter what the second tuner is trying to do, you cannot watch any channel in any other state apart from another channel v high, tone on. Unless you keep a list of all channel states, you will get most frustrated when you cannot watch 75% of the other channels. Either do without or move house. [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky+ HD
Splitting feed From Dish to watch SKY+
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