Surveying -- HOW TO GPS -- how it works GPS -- Garmin 12

GPS Tutorial go to site

The Garmin 12 GPS Change windows Confirm Get back to a point Use to scroll and for keying TURN ON

First page up…. 4 important pieces of data The satillite It’s signal Nav Error

Once you have a fix Where you are Your elevation (flaky) Are you late? Are you moving?

Enter a point 1.Page to a list 2.Highlight “waypoint” 3.Hit enter 4.Select and hit “new” 5.Name waypoint 6.Add coordinates 7.Select and hit “done”

Getting back to where you started Follow the arrow Monitor Speed Check Distance Hit GOTO Pick a Waypoint

CRUDE Where you are... Z o o m in or out Scale

Non-corrected 5-30 m Beacon-corrected 1 m Radio-corrected cms Post-processed dm to m GPS Accuracy

Real Time beacon correction for lake cores and bathymetry

Differential GPS for precision surveying of river terraces and alluvial fans

Cm-scale maps of desert surfaces