On Mon, 06 Mar 2006 13:27:19 GMT, "John, N9JG"
wrote:

the mechanics of mounting the second loop concerns me.

Very simple. Build a loop out of coax 1/5 the size of the main loop.
Make it out of the drive line by attaching the center conductor to the
shield at the point of full circumference. Put the loop inside the
main loop, co-planar, anywhere that conveniently suits you (I cannot
imagine a reason to climb a ladder to the top of the arc to do this,
though). Reggie's correspondence is more complete than this if you
can find it among his leavings in the archive.

73's
Richard Clark, KB7QHC