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Satellite TV receivers & systems support forums
Multi-receiver/TV systems - Domestic only
Is the solution a Quad LNB?
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<blockquote data-quote="Analoguesat" data-source="post: 565279" data-attributes="member: 176362"><p>No - an lnb can have one of 4 states</p><p></p><p>horizontal / vertical polarity - switched by a 13/18V voltage on the cable</p><p></p><p>hi band / low band - switched by a 22khz tone on or off on the cable. Therefore if more than one receiver is connected to one lnb, then as soon as one receiver is sending the correct instructions to go 18V / tone on, then the lnb will switch to that band and nothing any of the others can do can bring the receiver out of that state. The other receivers would only have access to any channels on the same hi band / tone on condition.</p><p></p><p>Dont even think about trying to run multuiple receivers off one outlet of an lnb - all it will do is lead to confusion and intense annoyance if you want to watch a BBC programme and granny puts one of the shopping channels on in the other room - you immediately lose the BBC!</p><p></p><p>Edit drat - need to type faster!</p><p></p><p><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="Analoguesat, post: 565279, member: 176362"] No - an lnb can have one of 4 states horizontal / vertical polarity - switched by a 13/18V voltage on the cable hi band / low band - switched by a 22khz tone on or off on the cable. Therefore if more than one receiver is connected to one lnb, then as soon as one receiver is sending the correct instructions to go 18V / tone on, then the lnb will switch to that band and nothing any of the others can do can bring the receiver out of that state. The other receivers would only have access to any channels on the same hi band / tone on condition. Dont even think about trying to run multuiple receivers off one outlet of an lnb - all it will do is lead to confusion and intense annoyance if you want to watch a BBC programme and granny puts one of the shopping channels on in the other room - you immediately lose the BBC! Edit drat - need to type faster! :D [/QUOTE]
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Satellite TV receivers & systems support forums
Multi-receiver/TV systems - Domestic only
Is the solution a Quad LNB?
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