[NLRS] Favorite horizontal loop design?

[Dr. Gerald N. Johnson]

On Fri, 2007-07-06 at 11:54 -0500, Paul Beckmann wrote:
> 
> I'd like to make up a stack of 3 horizontal loops for 6, 2, and .7
> meters and am wondering what tried-and-true designs the NLRS crew
> might recommend. I'm especially interested in matching section
> designed used. I'd also like any advice on spacing that will keep me
> out of trouble. I'll likely build all of them out of copper
> pipe/tubing for fixed outdoor use. Not anything for great performance,
> just to have weak signal capability from the home QTH.
> 
> 73
> --Paul, wa0rse -- EN34kv


I like the construction of one on a page squalo.htm search for squalo
and KG4OSA. I've scaled it to 2m with EZNEC and it looks good, but needs
minor adjustments for resonance. That scaled antenna will take power at
432 and 1296 with poor SWR (that will be masked by most feed lines) and
has workable sort of circular patterns on those bands. I've not worked
out a better match yet for all bands. It might be possible with some
added stubs for the higher band matches.

-- 
73, Jerry, K0CQ,
All content copyright Dr. Gerald N. Johnson, electrical engineer