On 8/5/2020 12:20 PM, sawyered@earthlink.net wrote:
You take the cover off the dial indictor. Pull the indicator needle off.
Push it back on pointing at the actual heading. You put the cover back on.
I determine true north by using the shadow of the tower at solar noon,
laying a piece of PVC conduit on the ground to align with the shadow,
then rotate the antenna to align with that marker, and adjust the
pointer as Ed describes above.
In the US, solar noon can be found here.
https://www.esrl.noaa.gov/gmd/grad/solcalc/
73, Jim K9YC
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