[TowerTalk] Declination Question (True North)

[Tim Duffy K3LR]

Hi John:

As long as you have your coordinates, this is the easiest way to do it.

http://www.srrb.noaa.gov/highlights/sunrise/sunrise.html

At sun noon, your tower shadow is true north.

73,
Tim K3LR

john at kk9a.com wrote:

> I'm doing some antenna work in Aruba and I would like to properly align my
> antenna north using a compass, not by staring into the Sun or some other
> star, etc.  If I calculated this properly the declination for this country
> is -9 degrees, 40 minutes.  I think this means that when I point my compass
> north, I am really looking -9 degrees, 40 minutes.  So, if I set my rotator
> to 350 degrees and then aim my antennas north using my compass, will my
> antennas be aimed at true north when I turn the rotator to 0 degrees?  I
> don't want to compensate incorrectly and be off 20 degrees.
>
> 73,
> John  P40A
>
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