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W5DXP > ANTENN 20.05.05 21:34l 19 Lines 897 Bytes #999 (0) @ WW
BID : 42860B9A$1_2
Read: GUEST
Subj: Re: High Impedance Feedlines = Lower Loss - Why ?
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Gary wrote:
> Thanks for the reply and example John. I was referring to the loss in
> power when operating into a high SWR with coax VS a high impedance
> line like twinlead / ladder line / open wire. Someone in a post here
> mentioned it was mainly current losses and that piqued my interest.
> Cecil answered my question and gave me the formula. In his example the
> coax was carrying about 3 times the current of the 450 Ohm ladder
> line, which explains it.
Remember, that is for the *SAME SWR*. When the SWRs are different,
as they will be for a fixed load, that loss ratio figure will vary
away from 3 to 1.
--
73, Cecil http://www.qsl.net/w5dxp
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