Topband: Short Receive Antennas

[Donald Chester]

>You might want to look at an article in QST by K6STI, who
>experimented/made a "noise-cancelling" antenna. It was
>a wire antenna, 25 or more feet on a side, with open wire feed
>lines from two opposing corners that went to a center pole and
>box with a matching xfmr, etc.  One of the feed lines was twisted 180 deg
>to cancel local noise signals.  QST article was Sep 1995, page 33.
>and pages following....might be worth a look.

I built one of those a few years ago, and still have it.  While it 
occasionally provides better reception than my other antennas, most of the 
time its performance is disappointing.  I pretty much consider mine wasted 
effort.