Thank you Tim. You are right, but which WGS84 projection or geographic coordinate system do I use?
I don't think it would be a GCS more like a projection coordinate system.
Because here are my choices:
Under a Geographic Coordinate System
then under spheroid based
my choices are WGS-84 Major Auxiliary Sphere
then under World
my choice is WGS-84
Under a Projection Coordinate System
then under World
my choice is WGS 1984 auxiliary sphere and WGS 1984 world mercator
Sorry for the confusion. I wonder what the coordinate system is in the Trimble GPS unit?
In kind spirit,
DCUBED
Also, The ESRI International user conference is now in play. Wish I was there. My paper was selected to be presented at this
conference under the topic 3D GIS.