On Fri, 22 Oct 2004 17:33:42 GMT, Bruce in Alaska
wrote:

ARPA takes a
complete ARPA Unit which is a complete cpu based system that is in
addition to the basic radar display system.

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I'm under the impression that ARPA is included on the Furuno 1833 that
I've been considering. Is that not correct? I would like to be able
to eliminate the flux gate compass requirement by assuming COG =
heading but not sure if it's possible.