United States 4th Ed.
The Mountaineers Books
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USING GLOBAL POSITIONING
SYSTEMS IN THE OUTDOORS 
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Canada 4th Ed.
Rocky Mountain Books
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Great Britain 4th Ed.
Cordee Books
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by Lawrence Letham
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Spanish 1st Ed.
Editorial Paidotribo
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In layman terms:
- How to use GPS Receivers
- Features of GPS Receivers
- GPS with maps
- GPS with computers
- GPS Theory of Operation
- GPS Navigation
- GPS Accuracy
- WAAS explained!
GPS Made Easy is all you need!
Master hand-held Global Positioning System receivers!
Clear language and illustrations demystify GPS for every user. Accurate navigation in the outdoors;
Realistic, practical outdoor examples: hiking in the desert, cross country skiing, kayaking in Alaska, boat regattas.
Available on-line
(click here to search the web),
at local book stores, or from the publishers (use links above).
Explained and demonstrated:
Using USGS, Canadian, and Metric maps;
Using Marine charts;
Using computers to download maps into the GPS receiver;
Using computerized topographical maps.
The importance of coordinate grids:
The well-known latitude/longitude coordinate grid;
Very useful, but little used in the US, the Universal Transverse mercator (UTM) grid;
The Military Grid Reference System (MGRS);
The Maidenhead grid;
The Ordnance Survey of Great Britain (OSGB).
GPS features:
Waypoints: what they are and how to get them into the receiver;
Goto function: the foundation of GPS navigation;
Routes: how to form and use them to navigate;
Built-in and downloadable electronic maps;
Navigation information: speed, bearing, vertical speed, ETE, Cross-track error, etc.
The importance of map datum:
NAD27, NAD83, WGS84 and OSGB.
Questions about GPS Navigation?
Contact Lawrence for the answer at:
Contact Lawrence for the answer at: