On Thu, 30 Oct 2003 20:38:40 GMT, "John Bell"
wrote in Message-Id:
:

I am certainly up for a better explanation of how GPS works.

Are you aware of this mailing list?

GPS for Aviation:

http://www.lsoft.com/scripts/wl.exe?...ISTSERV.UNB.CA

There are very knowledgable folks willing to answer all your questions
there.