On Mon, 14 Jul 2003 00:22:56 -0700, Frank Gilliland
wrote:

Leaving aside the question of whether or not one should talk skip on
CB, Are Lou Franklin and Jo Gunn Antennas just blowing smoke, or is
there anything in their claims that CP beams are best for skip
talking?



Smoke city. It takes a helical antenna to radiate circular polarization. Those
fiberglass CB antennas are called 'helical' only because of how they are made,
not because they radiate circular polarization (which they don't).

Thank you. Appreaciate you taking the time to explain and provide the
great links. I'm going to do a bit of study at the sites you provided.


Want to see a true helical antenna?

http://www.cc.edu/physics/radtel01.html

That's 30 inches long for 2400 MHz -- now can you imagine the size of a helical
for 27 MHz?

over 200 feet

The Jo Gunn antenna you cited is called a V-yagi, and is just another variation
of the basic yagi design. Assuming it is mounted horizontally, it's polarity is
horizontal, not circular.

If it looks too good to be true, it probably is.


"The more we understand, the better our choices will be." -- L. B. Cebik, W4RNL

Amen to that.