Topband: two wires Beverage

Tom Rauch w8ji at contesting.com
Tue Jul 27 21:51:16 EDT 2004


>
> Other than the possible impedance change with weather that
W8JI
> warns about, you should not have any problem using the 150
Ohm
> line for a reversible beverage as long as you adjust the
> transformers for the new impedance ratios.

I might worry a little about loss when dry also. I'm not
sure how this line behaves as a transmission line at radio
frequencies.

Maybe someone has measured some? I know rubber telephone
parallel wire is pretty bad at radio frequencies. One line I
measured was about 3dB per 100ft at 3.5Mhz. That may have
been an exceptionally lossy line, or it may have been better
than normal.




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