Some of us are so cheeky as to use CATV, RG-6, Rg-8, R8-11, etc., with
no regard as to the supposed 'surge impedence'..
What is the load impedence of a 50 ohm antenna at any frequency removed
from its resonance point anyway?
If the antenna is 30 ohms or 80 ohms, with some reactance, does the SWR
meter notice the inexpensive run of supposed 70 ohm coax that you
cadged from the cable tv company?
Once in a while I get an antenna that is fed with bits and pieces of
this and that, which swears differently back at the shack than it did
at the antenna feed point... Inserting another 5 or 10 feet of coax
jumper usually cures it...



denny / k8do - antenna monger from way back...

Another fine myth you've gotten us into, Ollie!

"Denny" wrote
If the antenna is 30 ohms or 80 ohms, with some reactance, does the
SWR
meter notice the inexpensive run of supposed 70 ohm coax that you
cadged from the cable tv company?
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Of course it doesn't. But at least it does try.

The meter thinks it indicates SWR on the transmission line, whereas it
actually indicates SWR on a long, imaginary, non-existent, 50-ohm line
between tuner and transmitter.

What sort of mess would Laurel & Hardy have found themselves in when
trying to disentangle forward from reflected power?
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