Sean:
Here's a page from the US's NOAA that allow you to calculate magnetic
declination for any location on the planet during the near future (it's a
slowly varying value due the the daily wandering of the Earth's magnetic
poles): http://www.ngdc.noaa.gov/seg/geomag/declination.shtml .
FYI: Sydney's current declination is calculated to be 12° 37' E, or True
North is actually 12 deg 37 min to the west of magnetic north in Sydney.
(Check out http://www.ngdc.noaa.gov/seg/geomag/icons/case1.gif for an example.)
73 de
Gene Smar AD3F
> Dear all,
>
>
>
> I am just about to stand up my tower with everything ready to go.yippee..at
> last..
>
>
>
> I have Azimuth and Elevation Positioners M2 OR2800PDC and M2 MT1000 see
> www.vk2sn.com <http://www.vk2sn.com/> for further details of my set-up.
>
>
>
> My location is in the city of Sydney Australia S33 53' 12.6'' and
> E151 14' 45.4'' Grid QF56oc
>
>
>
> To start with I will calibrate my poisoners to True North for Nova and
> such., then once up and running, I will use the Sun or whatever to further
> calibrate via the controller for accuracy. But I want to at least get it
> close to accurate before I put the tower up.
>
>
>
> I also cant really re-adjust once it goes up, I have to pull it down and so
> on.its very heavy for one person, so Im hoping to get things sorted before
> it goes up,..plus its too dangerous to climb and Im not one for climbing
> towers..I like my kids and want to see them live for a very long time.I
> don't have the experience.smile.I'll do most things in life..but not climb
> towers on houses..!!!
>
>
>
> So the question is, I will use a compass to choose North, but this is
> Magnetic North, to get True North, how many degrees do I add or subtract
> from Magnetic North.or where can I find this info, or how can I calculate it
> from my Sydney position - because I gather its different for everyone re
> Latitude.
>
>
>
> By the way, I hope this makes sense, the last time I had to figure out where
> I was by using a compass was when I was about 14 years old..so I would like
> some advice..
>
>
>
> Please advise if Im doing this right, or is there a much better and easy way
> to sort/calibrate this situation..
>
>
>
> Thanks guys,
>
>
> Sean Neylon
>
>
>
>
>
>
>
> Sean P. Neylon VK2SN QF56oc
>
> Cell Phone: ++ 61 413 747 276
>
> web: www.vk2sn.com
>
> email: sean@vk2sn.com
>
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Weather
> Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
> and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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