"Jim - NN7K" wrote in message
...
Check this antenna - equivelant of a 6 meter halo, by K0FF

http://www.qsl.net/k4pwo/sloop.htm

and, those are more like 1/2 wave loops (dipole), than
full wave loops (which are very high impedence-hard to feed).

Full wave dipoles are hi Z. Full wave loops are in the vicinity of 120 Ohms-
from memory- but not omnidirectional when mounted horizontally or
vertically.

Dale W4OP