On Fri, 16 Apr 2004 04:15:57 GMT, zeno wrote:
Anyone have anything good to say about those folded dipoles
that use this 300 ohm line for both the antenna and the feed
line?

Hi Bill,

Nope, not for both - hardly for either (and it is arguable that its Z
even comes close to 300 Ohms). No reason not to try either.

I have seen illustrations of folded dipoles using
this, but in actual practice this line will naturally have
some twising when it is suspended. I cannot imagine how you
would keep it from doing this to some extent. What effect
would this twisting have on the effectiveness of the antenna.

Keeps it from thrashing in the wind. As far as noise pick-up, the
twist (used by the power company) reduces that too. Insofar as its
intended purpose - no effect, detrimental or beneficial.

The illustrations always show them geometrically perfect and
straight and parallel.

Silly editors....

73's
Richard Clark, KB7QHC