zeitler@ibm.net wrote:
>
> Esteemed Reflectees,
> I should remember this being an old Navy TACAN tech but........
>
> When aiming my rotor, I have my magnetic compass sitting right under the
> boom of my quad. Actually lying flat on the roof with the tower retracted so
> I can manually point the beam. I visually line up the boom with the compass.
> Okay so far. In order to aim the beam at "true" north I would actually want
> it pointing at 012 degrees if I have a magnetic correction of 12 degrees,
> right? of course the rotor also needs to be sitting at 12.
>
> Help!!
>
> Lane Zeitler
> KM3G
> IFF and TACAN tech
>
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I have just done the exact thing you are doing and here is the method I
used.
First I determined which direction my rotator was pointing. Then I set
up the boom to that direction. I used my compass and the correction.
Remember a west correction means to add an east correction means
subtract. The way to determine true north is also easy - I have
included a www address
(http://www.geolab.nrcan.gc.ca/geomag/e_cgrf.html) so you can enter your
lon and lat for your specific correciton. Once done pin the mast to the
boom and its all set. I believe that accuracy is imortant but remember
the rotator direction is probably only accurate +/- 3 degrees.
Good luck
Ed KE3ZR
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