[FoxHunt] antennas for harmonic sniffing

[WolfBob]

Having been caught in a gross error on beam patterns, I have been 
messing with Yagi and such designs. I find that the quad is a near 
perfect antenna for vertical polarized hunting in that the lobe width is 
  good in both planes. Long Yagi's are better than short ones. These 
little short Yagi's are near useless V-pol for anything other than 180 
degree homing. Most any thing has quite useable lobe width in the 
horizontal plane.

I have not done much harmonic hunting, but are the harmonics most always 
in the dame pol as the fundamental?

Bob, WB6JPI

Homingin@aol.com wrote:

> Randy Estrella KR6DR of Palmdale, California has been a seller of 
> ready-to-use quads with circular elements for harmonic hunting.  Randy has also given 
> talks at ham clubs and conventions about how he uses them to track malicious 
> interference.  In one case, he put a 5th or 7th harmonic quad inside a duffel bag 
> to scout the halls of an apartment building to pinpoint a jammer.
> 
> For on-foot foxhunts, Travis Wood AE6GA uses one or two of Randy's harmonic 
> quads mounted onto his fundamental yagi.  You can see photos of Travis' setup 
> at:
> 
> http://members.aol.com/homingin/hamcon03.html
> http://members.aol.com/joemoell/ardfinla.html
> 
> Randy's e-mail address is kr6dr@arrl.net
> 
> 73,
> Joe Moell K0OV
> 
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