[Antennas] Finding True North (simplest method)

[Don Havlicek]

Mike,
Quite a novel approach, but not exact, as the precession of the earth
makes the times pre-meridian crossing and post-meridian crossing
unequal.
I'm sure it would work within 1 or 2 degrees, so go for it!
I'll stick with Polaris .. it's within .5 degree for all of North
America.

Don
N8DE

Mike J Maloney wrote:
> 
> Of all the recent threads I read on the subject recently, I did not see
> the method I use, which is quite simple.   Obtain the sunrise/sunset
> times from the newspaper, radio/tv weather reports, or even Geoclock for
> the day you want to check true north.  1.  Convert the sunset time to
> 24hr format by adding 12 hours.    2. Add the sunrise and sunset times. ,
> 3. Divide by 2 to obtain the time of your local meridan crossing.    The
> sun is at its highest point and cast a true north shadow at this time.
> If the total hours are an odd number such as 25,  subtract 1 hr and add
> 60 mins to mins side.  If total hours are odd and minutes total more than
> 60, subtract 60 and add 1 to hours side.
> - - -
> 
> Your moderator for this list is:
> Larry Wilson KE1HZ antennas-owner@mailman.qth.net
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