On Mon, 26 Jan 2004 21:12:28 -0500, "wg992000"
wrote:

Does anyone know if there is a set relationship between the accuracy / DOP/
Differenctial indicated on the GPS page to the accuracy of the compass
direction? ( of the GPS)

ie. Trying to determine how far off the compass rose would be off if WAAS
sat's were being received and there was high accuracy.

Kind of new at this. Any thoughts appreciated.

The compass course given by the gps depends more on how fast you are
going than whether WAAS is on. The magnetic course depends then on
whatever the software has for variation. Variation is a slowly
changing function of location, so won't depend on WAAS at all.

But, since you don't really know what the software does, you would be
better reading true if you are trying to swing your compass with the
GPS. Then use the variation from your chart.




Rodney Myrvaagnes J36 Gjo/a

Entering your freshman dorm for the first time, and seeing
an axe head come through the door on your right.