Global Positioning System (GPS) Resources
   Is the problem with my receiver?

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Aviation [Navigation] Formulary   by Ed Williams
Geodetic Software (Free for PC from NGS)
Geographic Conversion Software & Formulas  
Calculators (Navigation)

Differential GPS (DGPS)

GPS
GPS Error Sources
GPS Education Resource
GPS Orthometric Height (MSL)
GPS Evaluation: USFS GPS Receiver Performance Reports
GPS Evaluation: West Coast Test Site
GPS SPS Performance Standard (Oct 2001)
Equipment Manufacturers

GLONASS - The Global Navigation Satellite System (GLONASS), being deployed by the Russian Federation, has much in common with the U. S.' Global Positioning System (GPS) in terms of the satellite constellation, orbits, and signal structure.   Both systems are owned and operated by their respective defense departments, and offer precise, global, and continuous position-fixing capabilities.   Both transmit spread spectrum signals at two frequencies in the L-band (1.2 GHz and 1.6 GHz), and have pledged to make a partial set of signals available for civil use without any user fees for the next 10 years, or more.

Consumer Equipment, Reviews and Information   by Joe Mehaffey and Jack Yeazel
  Google Search of Joe Mehaffey and Jack Yeazel's GPS Information Web Site
 

The Geographer's Craft Project Notes   by Peter H. Dana
  Google Search of Geographer's Craft Project Site
 
GPS Orthometric Height (MSL)
GPS Tutorials

GPS Data & Information (USNO)
GPS Engineering Series (SGC Technical Publications)
GPS Errors & Determining Your Receiver's Accuracy
GPS SPS Performance Standard (Oct 2001)

GPS Accuracy Web Pages   by David L. Wilson
  Google Search of David L. Wilson's Site
 

GPS Error Distribution - Garmin 12XL   by David L. Wilson
GPS Navigation Formulary V1.37   by Ed Williams

GPS NMEA-0183   by Peter Bennett
  Google Search of Peter Bennett's Site
 
All NMEA $GPxxx sentence codes and short descriptions
GPS NMEA-0183 De-Mystified
GPS Navigation and other GPS Applications
GPS Publications - Stanford University

GPS Raw Data Pages, Sam's   by Storm Van Leeuwen S.
  Google Search of Sam Storm Van Leeuwen's Site
 
GPS Resource Library   by Karen Nakamura
  Google Search of Karen's Site
 

GPS Software   by Dennis Milbert

GPS Technical Reports
GPS Tutorials
GPS UTM, A Practical Guide   by Don Bartlett


Maps & Mapping Agencies

NGS - National Geodetic Survey, a main-line component of NOAA's National Ocean Service, is responsible for developing and maintaining the National Spatial Reference System (NSRS). The NSRS is a network of many thousands of precisely determined points known as geodetic control points. Most of these points are marked by metal disks about 3 inches in diameter, or a metal rod under a hinged cover. These points provide the common base of reference to correlate longitude, latitude, height, scale, and orientation throughout the Nation, and the changes of these with time, for resource mapping; transportation, communication, and defense systems; boundary and property surveys; land record systems; mapping and charting; public utilities; and a variety of scientific and engineering applications. Geodetic Resources

  Google Search of NGS - National Geodetic Survey
 

OEM Boards - GPS Receivers   compiled by Storm Van Leeuwen S.

OpenSource GPS
- Receiver for educational, engineering, scientific & R&D applications. GPS receiver capabilities continue to improve at a pace that rivals the rate of change in microelectronics. Small multi-channel GPS receivers with sophisticated tracking, filtering and diagnostic features are making possible even more advanced applications. But most of the GPS receiver functionality is hidden and unaccessible to those wanting to learn more about GPS. Now, with the GPS1000 one can examine all facets of GPS receiver operation.

Time Resources

USCG Navigation Center provides quality navigation services that promote safe transportation, support the commerce of the United States, and directly benefit  world-wide international trade.   As a Center of Navigation Excellence, NAVCEN is proud to be at the forefront of United States transportation and navigation initiatives, leading the nation and the international maritime communities into the Twenty-First Century.

  Google Search of USCG Navigation Center Site
 

U.S. Geological Survey (USGS) a bureau of the U.S. Department of the Interior, was established to provide a permanent Federal agency to conduct the systematic and scientific "classification of the public lands and examination of the geological structure, mineral resources, and products of the national domain." This information is provided to the public in many forms, such as reports, maps, and data bases, that provide descriptions and analyses of the water, energy, and mineral resources, the land surface, the underlying geologic structure, and the dynamic processes of the Earth.

  Google Search of U.S. Geological Survey (USGS)
 

UTM - Universal Transverse Mercator

WAAS - The Wide Area Augmentation System is a safety-critical navigation system that will provide a quality of positioning information never before available to the aviation community.

 

Copyright 2012 - Samuel J. Wormley
  by swormley1@gmail.com