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From: landru@cis.udel.edu (Paul S. Masters)
Newsgroups: sci.electronics
Subject: Re: Flux Gate Compass
Message-ID: <42983@nigel.ee.udel.edu>
Date: 28 Jan 91 18:27:49 GMT
References: <2939.279ef15b@iccgcc.decnet.ab.com> <1991Jan25.032656.3794@syd.dms.CSIRO.AU> <43236@rphroy.UUCP>
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In article <43236@rphroy.UUCP> rhaar@albert.cs.gmr.com (Robert L. Haar CS50) writes:
>Note that in addition to sensor inaccuracies, you will have to cope with
>the magnetic declination - the differnece between magnetic and
>geographic north - that varies from one location to another.

And there is a heuge varriation here. In Delaware it is as much as 18 deg. I
know of some places where it can be as high as 180 degrees. I would use any
kind of instrumentation that relies on the magnetic field of the Eearth; it's
just not verry reliable. 

					Paul

-- 

 * * * * * * *  ======================= Paul Masters N3IRU
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