Try this link your lucky you have a compass I don't.
http://www.satcure.co.uk/tech/compass.htm
I have been trying to find a way for almost a year to
figure true north (assuming that's what the logging
programs use to do the long path short path thing)
73 fer nw,
Bob AD5VJ
10X# 37210, FP#-1141, SMIRK#-5177
http://www.n5iet.com/
Code may be taking a back seat for now,
but the pioneering spirit that put the code
there in the first place is out front of it all.
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of
VK2SN
> - Sean P Neylon
> Sent: Thursday, December 01, 2005 1:57 PM
> To: towertalk@contesting.com
> Subject: [TowerTalk] Positoners Calibration to True
North
>
>
> 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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