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

3. GPS Tutorial http://trimble.com/gps/ go to site

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

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

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

7. 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”

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

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

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

11. Real Time beacon correction for lake cores and bathymetry

12. Differential GPS for precision surveying of river terraces and alluvial fans

13. Cm-scale maps of desert surfaces