Hi Carol,
If I understand it right, you have good control over the directions your beams
are pointing so no means can explain that they are pointing in the wrong
direction, not even a North Seeking Plastic Owl. :)
You can have variations due to different paths for the radio signals, something
I believe is not that commonly known around the Ham population and probably is
not that well understood around the science population either (and this is
probably due to lack of interest for the phenomena. Time to study to get the
Nobel Price).
Just my little dime,
Hans - N2JFS
-----Original Message-----
From: Richard Solomon <dickw1ksz@gmail.com>
To: towertalk <TowerTalk@contesting.com>
Sent: Sun, Jan 22, 2017 11:56 am
Subject: Re: [TowerTalk] Strange behavior
How about using the Compass App
on your SmartPhone ?
73, Dick, W1KSZ
On Sun, Jan 22, 2017 at 8:59 AM, <john@kk9a.com> wrote:
I am trying to avoid the true north thread however I would verify that they
are indeed pointing 45 degrees when you beam Europe. A compass can be
inaccurate around a lot of metal or if not level and it is measuring
magnetic north. If you use Google earth you can pick an object 45 degrees
from your tower and see if you beam is pointing that direction. Since you
multiple towers and beams it is possible that something is skewing the
pattern or that you have skewed propagation under these poor conditions but
I would visually look at the direction one more time using a different
direction method.
John KK9A
To: <towertalk@contesting.com>
Subject: [TowerTalk] [SUSPECTED SPAM] Strange behavior
From: "Carol Richards" <n2mm@comcast.net>
Date: Fri, 20 Jan 2017 18:35:57 -0500
Hello all,
In late summer, I had some minor work done on my towers and antennas. I
used
a compass so that the beams were lined up correctly with N at 0 degrees and
NE at 45 degrees, EU direction. All monoband yagis have not loosened up,
but that EU now peaks at due East on all three yagis, separate towers, The
other directions behave properly; N to JA, W to the Pacific etc. Can anyone
explain why the change? There is about 15 db difference in signals from EU
at 90 degrees and EU at 45 degrees?
I understand that EU on 15m would be skewed at this point in the cycle, but
40m and 20m?
Carol
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