On 22 Apr 2006 11:46:13 -0700, "RHF"
wrote:

excerpted

This looks like what hams call a J-pole antenna. J-poles are popular
on the VHF and UHF bands. There's not much use of them on the HF bands
because they would be way, way huge -- your 49 meter version would be
about the size of a telephone pole.

Rhf, ya really oughtta go to Amazon.com and pick up a used copy of the
ARRL Antenna Book; David's advice was right on.

bob
k5qwg