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Old January 10th 05, 12:22 AM
Ralph Mowery
 
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"ml" wrote in message
...
i was reading some technical spec's on a ladder line feed.

the numbers showed it had sorta hi swr around 5 yet the power loss was
really low for it's run, like about 2watts

this confuses me, i always thought that high swr automatically ment
'loss' so what is the piece i am missing?


even stranger was the same equation as above but run for coax, which had
lower swr but higher power lost, which i then attrib to something like
the resistane of the coax?


boy i am mixed up


High SWR does sort of mean loss. It is just that with ladder line the loss
is very low compaired to coax. If you have almost no loss and multiply it
by 10 due to high swr you still have very small loss. If you start out with
coax and have a much larger loss to start with and multiply it by the same
number , you will have much larger loss.