GPS SDK to add GPS and coordinate conversion functionality to your software and scripts). All NMEA0183 protocol versions are supported and can be filtered by NMEA sentence type and talker ID. Garmin USB PVT support. Information on GPS status can also be retrieved: GPS fix quality, satellites used in fix, satellites in view, satellite azimuth, elevation and signal strengths. The toolkit also offers functionality to perform map grid and datum transformations: latitude and longitude can be converted to various map grids, like Transverse Mercator (TM), Oblique Mercator, Mercator, Oblique Stereographic, Polar Stereographic, Cassini, Albers Equal Area Conal, Gauss Kruger or Lambert Conformal Conic projection, Lambert Azimuthal Equal Area and Krovak, for instance, to convert the GPS position to UTM or NAD27 / NAD83 State Plane. All map grid parameters can be specified (Scale Factor, False Northing, False Easting, Origin Latitude, Origin Longitude, North Parallel, South Parallel ) allowing you to convert your position to any map grid around.Comes with various programming examples: Visual C++, Visual Basic, Visual C# .NET, Visual Basic .NET and VBScript. NADCON, HARN and NTv2 datum conversions are supported. The software contains more then 5000 map datums and local map grid definitions.