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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
hook 2 stb's to 1 lnb
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<blockquote data-quote="spiney" data-source="post: 179793" data-attributes="member: 192438"><p>In fact, bidOn, that DOES explain, but let's take a specific example .....</p><p></p><p>The control signals back up cable to lnb are 14/18 volts, and 22Khz (or no tone). When 2 receiver outputs are "mixed", whichever reciever sends 18 v forces horizontal polarity, and whichever sends 22Khz forces hi band. Now suppose:</p><p></p><p>receiver 1 wants a channel on hi band vert, so sends 22k / 14v.</p><p></p><p>receiver 2 wants a channel on lo band hori, so sends (no tone) / 18v.</p><p></p><p>Now, both receivers will get hi band hori, so neither gets the channel it wants!</p><p></p><p>Clearer?</p></blockquote><p></p>
[QUOTE="spiney, post: 179793, member: 192438"] In fact, bidOn, that DOES explain, but let's take a specific example ..... The control signals back up cable to lnb are 14/18 volts, and 22Khz (or no tone). When 2 receiver outputs are "mixed", whichever reciever sends 18 v forces horizontal polarity, and whichever sends 22Khz forces hi band. Now suppose: receiver 1 wants a channel on hi band vert, so sends 22k / 14v. receiver 2 wants a channel on lo band hori, so sends (no tone) / 18v. Now, both receivers will get hi band hori, so neither gets the channel it wants! Clearer? [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
hook 2 stb's to 1 lnb
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