[Antennas] Using GeoClock To Find True North

[John/K4WJ]

It is interesting that Merv's message has generated so many suggestions to 
help him find true north when Merv never asked for help. His message below 
is providing another method that he USED to determine if his rotor and 
antennas are aligned to true north when he points them in that direction 
using the indicator on his rotor control box.

I'm a little sensitive to this since I recently offered help to someone on 
another reflector. Had I read the complete message I would have learned 
that the author wasn't asking for help, he was just commenting on a 
condition he observed.

By the way Merv, thanks for your suggestion.

73..de John/K4WJ

At 12:39 PM 2/18/02 -0500, Merv Stump wrote:
>The ARRL Antenna Book describes a method for finding true north based on the
>fact that the sun is directly south at 12:00 noon local time.  This is of
>course only true if your qth is exactly on the longitudinal meridian on
>which your time zone is based (e.g. 75 degrees for EST); and on the dates of
>the summer and winter solstice.  For any other location and on any other
>dates, corrections have to be applied to determine the exact time at which
>the sun is in the south.  The antenna book explains how to make these
>corrections.  However, I just noticed that GeoClock gives you the azimuth
>and elevation angles for the sun at all times.  When the azimuth angle is
>180 degrees, the sun is in the south.  Today at 12:08:40 I ran to see if my
>boom lined up with the shadow of my tower.  It's a little off, and now I'll
>have to worry about it until spring.
>
>Regards, Merv
>
>
>- - -
>
>Your moderator for this list is:
>Larry Wilson KE1HZ antennas-owner@mailman.qth.net
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73..de John/K4WJ
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   John/K4WJ in Pembroke Pines, FL
    QTH  26 00 51 N
         80 16 16 W

K8PXG from 18 Jun 59 to 11 Feb 97
K8WJ  from 12 Feb 97 to 07 Apr 97
ZF2HZ from 17 May 84 to 31 Dec 84
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