Magellan GPS PROMARK X User Manual page 8

Chapter 8 - Troubleshooting and Operating Tips
Error and Warning Messages ..................................... 8-1
Operating Problems ................................................... 8-5
Operating Tips ......................................................... 8-10
Unsure of Your Position When Initializing ............ 8-11
Search and Acquisition Errors .............................. 8-11
Initialization Errors ............................................... 8-11
The Signal Environment ....................................... 8-11
Insufficient Number of Satellties .......................... 8-12
Unit Searches Constantly ..................................... 8-13
Accuracy Warning Symbol ................................... 8-13
Signal Quality ...................................................... 8-13
Old Data ............................................................. 8-14
Choosing a Datum .................................................. 8-14
Using the Unit Near the Poles .................................. 8-15
Storing the Unit ....................................................... 8-15
When Nothing Else Works ....................................... 8-15
Magellan's Customer Support ................................. 8-16
Appendix
1 - Global Positioning System .................................. A-1
2 - Differential Theory ............................................. A-5
3 - User-Defined Datum Worksheet ......................... A-9
4 - Table of Constants ........................................... A-11
5 - British, Irish, and UPS Grids .............................. A-21
6 - User-Defined Grid Worksheet........................... A-23
7 - State Plane Coordinate Constants .................... A-25
8 - Waypoint Log, Grid .......................................... A-45
9 - Waypoint Log, Lat/Lon ..................................... A-47
10 - Position Dilution of Precision .......................... A-49
11 - Signal Quality ................................................. A-50
12 - Glossary ......................................................... A-51
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