GPS Links by Doyle's GIS

ACCURACY

• GPS Accuracy Test - Test results of 2 different common GPS receivers.

• How to Improve GPS Accuracy - A list of methods to help improve GPS location accuracy.

• David L. Wilson's GPS Accuracy Web Page Very detail info on accuracy.

GENERAL LINKS

• Joe Mehaffey and Jack Yeazel's GPS Information (Very GOOD and complete site)

• A PRACTICAL GUIDE TO GPS (very good summary)

• Digital Grove - Desktop Digital Mapping - A Very GOOD site including information about mapping with low cost GPS.  Make sure to check out  GPS-enabled Field Data Kit and fGIS - Free GIS Viewer and Shapefile Editor

• All About GPS (Trimble) Good general info on GPS and how it works

• Samuel J. Wormley - Educational Observatory Institute, Inc

• www.gpsnuts.com The name says it all

• GPS Resources

• Global Positioning System Overview by Peter H. Dana

• http://www.maporama.com Allows you to get Lat Long for an address and it gives you a map.

• PC-Mobile Re-Radiating Antenna Review

PLACES TO BUY GPS UNITS AND ACCESSORIES

• GPS Geek.com - Lots of antenna and a very good selection of cables and accessories.

• Gilsson.com - Lots of antenna and a very good selection of cables and accessories.

• The GPS Store.com- I gotten 2 GPS units from them and have had good luck both times.

WASS & DGPS (Wide Area Augment System & Differential GPS)

• Differential GPS by Dale DePriest Has very detailed information about DGPS and WAAS.

• Garmin What is WAAS?

• Wide Area Differential GPS Laboratory by Stanford University

• Trimble DGPS - Information about diffential GPS

SOFTWARE

• OziExplorer - GREAT PROGRAM  I love this program, Must have.  Ok Ok I like it :) Allows you to take GPS data and plots it on a topo map and aerial photos.  To see an example Click Here

• GeoSky - Lets you see when the best times for GPS are for a given area and date.

• GPS Utility Nice program to handle Way points,  You can even export them to an AutoCAD file and  pull them up in AutoCAD.

• MacGPS Pro - I haven't used this program but if you use a Mac check it out.

• ExpertGPS - I haven't used it but a friend has and says he likes it.  Much like OziExplorer it allows you to interface your GPS with maps and aerial photos.

• SA Watch Lets you check the accuracy of you GPS.  For examples click here.

 

ANTENNA

• GPS Geek.com - Lots of antenna and a very good selection of cables and accessories.

• Gilsson.com - Lots of antenna and a very good selection of cables and accessories.

• PC-Mobile Re-Radiating Antenna Review a review of an universal re-radiating antenna.  The place to buy it is http://pc-mobile.net/gpsant.htm

Coordinate Systems / Data / Converters

• State Plane Coordinate Systems with Magellan Receivers (how to setup a Magellan to do State Plane.

• Corpscon - a Coordinate Converter by the USA Army Corp of Engineers.  Converts several data.  Very useful if you have state plan data that you need converted for your GPS

• Tatukgis Coordinate Converter Go to products then Projections Coordinate Calculator

• NAD27 to NAD83 Converter (does it online)

• CoordTrans - converts UTM NAD27, NAD82, WGS84
   

WAYPOINTS

• http://www.maporama.com Allows you to get Lat Long for an address and it gives you a map. Very handy to find the coords. for an address you are looking for.

• SwopNet Waypoint Databank

• Travel by GPS Maps Waypoints Tracks to Adventure

Benchmarks / Reference Points

• National Geodetic Survey (NGS) Markers - allows you to search for bench marks for an area.

• NGS Survey Marker Accuracy - Gives you information on accuracy of bench markers.  (the David Doyle here is a different person than me)

• Tennessee Dept of Transportation Geodetic Reference Manual

• Tennessee Dept of Transportation Standard Survey Division

• Resources

 

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