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Non Line of Sight wireless video transmission underground?
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<blockquote data-quote="Family_Dog" data-source="post: 903146" data-attributes="member: 82"><p>Leaky-Feeder cable is commonly used underground. This means that a special cable is laid all along the level, featuring onboard repeaters every so often. This info is then relayed via cable up the shaft to the surface control room. The radios used are usually VHF (136-174MHz) or UHF (400 - 470MHz).</p><p></p><p>Leaky feeder cable is no problem but I do not know if video repeaters in wi-fi frequencies are available or not, I should imagine they would be. </p><p></p><p>It remains an expensive exercise, certainly not a cheap system.</p><p></p><p></p><p>-F_D</p></blockquote><p></p>
[QUOTE="Family_Dog, post: 903146, member: 82"] Leaky-Feeder cable is commonly used underground. This means that a special cable is laid all along the level, featuring onboard repeaters every so often. This info is then relayed via cable up the shaft to the surface control room. The radios used are usually VHF (136-174MHz) or UHF (400 - 470MHz). Leaky feeder cable is no problem but I do not know if video repeaters in wi-fi frequencies are available or not, I should imagine they would be. It remains an expensive exercise, certainly not a cheap system. -F_D [/QUOTE]
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Non Line of Sight wireless video transmission underground?
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