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Re: Re: True North vs Magnetic



If your local airport happens to have a compass rose painted on a taxiway or ramp ... those are very good ... using
Polaris will get you to within a degree or so...

John
K0UWT

Dave D'Epagnier wrote:

> Not only that, but the magnetic declination varies over time as well. In
> Boulder Co it was about 13.5 degrees 20 years ago. Now it's about 10.5
> degrees, I hear. So looking at a USGS map won't do it. Does anyone know
> where to find current information regarding this?
>
> --Dave
> K0QE
>
>         ----------
>         From:  K1uxbMa@cs.com [SMTP:K1uxbMa@cs.com]
>         Sent:  Wednesday, March 01, 2000 3:27 PM
>         To:  amsat-bb@AMSAT.Org
>         Subject:  [amsat-bb] Re: True North vs Magnetic
>
>         All;
>         I'm using an old Army magnetic compass to take reading on the
> antennas and
>         setup the
>         correct headings on the shack indicators. Most are probably familiar
> with
>         this compass
>         ,there are two partial lines on the face which indicate Magnetic and
> True.
>         Question is which is which ? Ture looks to be about 15 degrees east
> of
>         Magnetic.But this varies with
>         location doesn't it ?  Any help appreciated. Tnx
>
>         Nick_K1uxb@Amsat.Org
>         AmSat M#22708  ARRL M#
>
>         Save_Time Go_Online
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