In a message dated 4/20/2009 9:03:09 PM Greenwich Standard Time,
jim@audiosystemsgroup.com writes:
Bottom line -- for a LONG run, the much lower loss of hardline as compared
to smaller coax is FAR more important than the slight increase in loss due
to mismatch.
Agreed about the minimal loss, but there still is an issue of the mismatch
coupled with a nominal SWR of maybe 1.2 or 1.3 that might appear even with
using 50 ohm cable. This, coupled with the mismatch of the 75 ohm cable,
also coupled with excursions up and down near the band edges could be a
problem for solid state xcvrs and solid state amps. Many get cranky when
looking at SWRs of 1.5 or higher.
However, as you pointed out, loss due to mismatch is not a big factor.
Bill KH7XS/K4XS
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