On 9/17/2010 10:59 PM, Rockinghorse Winner wrote:
Looking at charts of cable loss due to SWR I note that any swr less than 8
or 9 to 1 results in hardly more than 1 dB of loss due to SWR using even
1/4" coax. So, really, why the FUD on this subject?

Lee


With rigs of old.. About the worst a HIGH SWR would do is arc over the
tank tuning capicator.

But with modern Solid State rigs you run them full power into a high swr
and it's off to the land of the soldering gun for a brand new set of finals.

High SWR means excessive voltage on the finals...

I had a VHF rig once where the T/R relay failed, THE SWR don't get much
worse than that.. Took me quite a while to clean the carbon off the
capacitor plates... But the tube survived.


Thankfully my TS-2000 starts with a low power for just long enough to
verify good match then it kicks up.. Bad match it beeps at me ... .==
..=. and remains in RECEIVE





--
Nothing adds Excitement like something that is none of your business.