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Message: <blockquote data-quote="satelliteman" data-source="post: 588116" data-attributes="member: 255812">If your going to do this type of work, it might be an idea to get yourself a professional spectrum analyser or meter, so you measure the signal losses from the antennas down to the headend. A general understanding of how IRS systems work might also be an advantage.This question cannot be answered correctly not knowing the signal level received, but in theroy a 30Mtr drop of 1mm coaxial will give you approx 9dB - 10dB loss @ 2Ghz.</blockquote>