[TowerTalk] Reradiated Noise from Delta Loop

[Richard Solomon]

A 6-8' Loop Antenna mounted on a R/S TV Rotator did wonders for nulling
out the noise. I got about a 3-4 S-Unit reduction. But then, I am not
that far from Fort Upchucka !!

73, Dick, W1KSZ

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com]On Behalf Of Robert Harmon
Sent: Sunday, September 12, 2010 4:22 PM
To: towertalk at contesting.com
Subject: [TowerTalk] Reradiated Noise from Delta Loop


I am experimenting with a flag antenna for receiving on 80 to hopefully
orient it so our local power line noise is reduced.  The noise been up to S6
to S7 on 80 meters.
I am using a full wave delta loop for 80 strung off the side of my tower.
I'm using a balanced tuner and ladder line feeding it for vertical
polarization.  It would probably reduce the
noise level if I fed it for horizontal polarization  (??) but I want the
lowest angle of radiation for DX use.  I figure its best to try a separate
receive antenna so I am experimenting with
different antennas to see what is going to work the best to reduce the noise
level.
I think the delta loop is reradiating the noise so need to figure out how to
open it somewhere or ground it.   I have been searching through the archives
and found one solution was
opening up the delta loop in the middle of the bottom horizontal leg.
Anyone had success with other options to "de-noise" the loop ?

Bob
K6UJ
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