[TowerTalk] Double Coax Runs to Reduce Loss?

[Steve Hunt]

Mike,

This member of the "TT community" says that, if you parallel connect the 
two lengths - outer to outer, and centre to centre, at each end - you'll 
have a 25 Ohm line with _the exact same_ matched loss as one of the 
individual lengths.

But if you had a lossless 2:1 transformer at each end and were operating 
in a 50 Ohm system, you'd overall have _half_ the loss.

Steve G3TXQ



On 18/12/2016 17:48, rfman45 wrote:
> I was at a hamfest recently and a seller there was discussing how he uses two equal length runs of the same coax (an LMR type) to halve his losses on a long run to a distant tower some 300 or so feet away. His point was that he had a lot of this type of coax around and therefore it was better to do this than to buy something more efficient.
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> I never heard this before. What does the TT community say?
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> Mike  W2LO
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