[TowerTalk] Hardline ?

[Cqtestk4xs at aol.com]

In a message dated 4/20/2009 9:03:09 PM Greenwich Standard Time,  
jim at 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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