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Multi-receiver/TV systems - Domestic only
Please help me (splitter issues)
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<blockquote data-quote="archive10" data-source="post: 1034329"><p>To be a little more clear:</p><p></p><p>With the information you give, I believe you have two TVs with sat-tuners built in.</p><p>They are connected to a single coax-cable from the dish by means of the splitter.</p><p>The LNB in front of the dish needs to be powered as well as controlled to select the right frequency band, and the so-called polarisation.</p><p>This is done by the receiver, in your case the downstairs TV.</p><p>If two TVs are connected at the same time, they might interfere with each other.</p><p>I think whoever installed your system has turned off the "power and control signals" on the second TV.</p><p>This means that when the downstairs TV is turned off, the LNB is not activated (no power), and you have no reception.</p><p>It also means that the upstairs tv will have a limitation in the channels it can see, as the downstairs TV "selects" what frequency band and polirisation that the LNB will be looking at.</p><p></p><p>You can check if this is case by going into the configuraiton settings on your TVs, and see if there is an option to turn on/off LNB power.</p><p>If it is off upstairs, and on/missing downstairs, then that's pretty likely to be the case.</p><p>Of course, this is all qualified guessing - there may be something else wrong.</p><p></p><p>But If it is the case, then (as william-1 points out) the best solution is to swap to a dual or quad LNB, and run more cables directly to upstairs bedroom from the LNB.</p><p>Compromise could be something called a stacker, which allows two signals to be sent on one cable, provided your existing cabling is good enough.</p><p>Or you could just live with the way it is now - even through it can be impractical to have to turn on downstairs just to watch something upstairs...</p></blockquote><p></p>
[QUOTE="archive10, post: 1034329"] To be a little more clear: With the information you give, I believe you have two TVs with sat-tuners built in. They are connected to a single coax-cable from the dish by means of the splitter. The LNB in front of the dish needs to be powered as well as controlled to select the right frequency band, and the so-called polarisation. This is done by the receiver, in your case the downstairs TV. If two TVs are connected at the same time, they might interfere with each other. I think whoever installed your system has turned off the "power and control signals" on the second TV. This means that when the downstairs TV is turned off, the LNB is not activated (no power), and you have no reception. It also means that the upstairs tv will have a limitation in the channels it can see, as the downstairs TV "selects" what frequency band and polirisation that the LNB will be looking at. You can check if this is case by going into the configuraiton settings on your TVs, and see if there is an option to turn on/off LNB power. If it is off upstairs, and on/missing downstairs, then that's pretty likely to be the case. Of course, this is all qualified guessing - there may be something else wrong. But If it is the case, then (as william-1 points out) the best solution is to swap to a dual or quad LNB, and run more cables directly to upstairs bedroom from the LNB. Compromise could be something called a stacker, which allows two signals to be sent on one cable, provided your existing cabling is good enough. Or you could just live with the way it is now - even through it can be impractical to have to turn on downstairs just to watch something upstairs... [/QUOTE]
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Multi-receiver/TV systems - Domestic only
Please help me (splitter issues)
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