On Mon,1/23/2017 8:32 AM, Michael Clarson wrote:
David's method of using a topo map and sighting an object is the best way.
That works IF you can see the distant object. My towers are in a dense
redwood forest. I established true north from the shadow of the tower at
solar noon using online tables by date, on a day when the sun got
through the trees to cast a shadow at noon, and laid down a log along
the shadow.
https://www.esrl.noaa.gov/gmd/grad/solcalc/
73, Jim K9YC
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