Topband: Wellbrook receive loop performance

joe galicic at comcast.net
Tue Apr 10 05:07:14 PDT 2012


I am experimenting with a small one meter square loop.  It is 5 turns of
#14 wire with a one turn pickup loop.  Feeding the pickup loop directly
with 50 ohm coax.  Using air variable cap to resonate the 5 turn loop.
I have it setup in my basement on a tripod with small TV rotator and it
works amazingly well.  I can null stations about 3-4 S units with it and
it is about 4 S units (24 DB) quieter than my inverted L.  I also have a
short 140 foot BOG and the loop performs nearly the same with the added
ability null out noise sources.  I plan to move it outside and take some
more measurements.  I'm pretty impressed so far.  -Joe KB3KJS


On Mon, 2012-04-09 at 17:17 -0700, Jim WA9YSD wrote:
> How well does this antenna perform in a City environment like mine on top of a 50 foot tower?
>  
> Stay on course, fight a good fight, and keep the faith. Jim K9TF/WA9YSD
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK




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