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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Amplifier and cable run questions
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<blockquote data-quote="Robbo" data-source="post: 592987" data-attributes="member: 256551"><p>Hi,</p><p></p><p>I can only give a theoretical answer and that is that the amplifier should go as close to the LNB as possible. However put it too close and with a large dish like yours on 28E, the amplifier could be overloaded. </p><p></p><p></p><p>If you measure the signal level coming from the dish, add on the gain of the amlifier, you must make sure that it does not exeed the maximum amplifier output. If you know the attenuation per m of your cable ( about 22dB per 100m at the highest IF frequency), you would be able to work out how far down the cable you need to put it.</p><p></p><p>Amplifiers for a single LNB are available with a sloped gain response v frequency. google for LNB amplifier.</p></blockquote><p></p>
[QUOTE="Robbo, post: 592987, member: 256551"] Hi, I can only give a theoretical answer and that is that the amplifier should go as close to the LNB as possible. However put it too close and with a large dish like yours on 28E, the amplifier could be overloaded. If you measure the signal level coming from the dish, add on the gain of the amlifier, you must make sure that it does not exeed the maximum amplifier output. If you know the attenuation per m of your cable ( about 22dB per 100m at the highest IF frequency), you would be able to work out how far down the cable you need to put it. Amplifiers for a single LNB are available with a sloped gain response v frequency. google for LNB amplifier. [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Amplifier and cable run questions
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