At 09:22 AM 3/31/01 -0800, Jim Berry wrote:
>I had the same question once. The SWR change is not great enough to
>warrant any stubs or anything. Just do not mix 50 ohm and 75 ohm
>coax. Also remember that your SWR meters are probably set up to read
>50 ohm line. They will not really be accurate on the 75 ohm stuff.
>I use the big hardline to the smaller flexible stuff like they use to
>feed your TV. I have gone so far as to change all my stuff to the F
In my installation, my single run of 75-ohm hardine is connected on either
end to lengths of RG-213, and all my in-shack jumpers are 50-ohm. I think
it makes sense, as Tom says, to not have more than one length of 75-ohm in
a run, but my setup certainly works OK(see my previous message).
I would be very skeptical of the F connectors, particularly for significent
amateur power. The very limited contact area of the center conductors
strikes me as a problem just waiting to happen.
73, Pete N4ZR
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