Magellan GPS: how to obtain GPS coordinates?

Savers by Ceg wrote: 
I gave up on this and hired a Land Surveyor.
As it turns out, GPS accuracy is not where good enough. A commercial
quality survey must by law be accurate to 0.1 foot and a high resolution
commercial survey goes down to 0.1 inch. Your typical hand held GPS,
even with WAAS, will give position "within 5 meters 95% of the time".

Using reflected laser beams is much simpler and more accurate.

Stubby wrote: 
The 'in use' accuracy of a GPS can be under 3 feet, given adequate
numbers of active satellites. Or, it can be only 50 feet, or worse.
Good enough, perhpas, to locate old surveyor stakes, not good enough to
anchor your fence in the south 40.