Garmin GPS 10 Deluxe Technical Specifications - Page 25

Position Record The Position Record has a record identifier of typedef struct { float alt; float epe; float eph; float epv; int fix; double gps_tow; double lat; double lon; float lon_vel; float lat_vel; float alt_vel; float msl_hght; int leap_sec; long grmn_days; } cpo_pvt_data; alt Ellipsoid altitude (meters) epe Est pos error (meters) eph Pos err, horizontal (meters) epv Pos err, vertical (meters) fix 0 = no fix; 1 = no fix; 2 = 2D; 3 = 3D; 4 = 2D differential; 5 = 3D differential; 6 + = undefined gps_tow GPS time of week (sec) lat Latitude (radians) lon Longitude (radians) lon_vel Longitude velocity (meters/second) lat_vel Latitude velocity (meters/second) alt_vel Altitude velocity (meters/second) msl_hght Mean sea level height (meters) leap_sec UTC leap seconds grmn_days Garmin days (days since December 31, 1989) Receiver Measurement Record typedef struct { unsigned long cycles; double pr; unsigned int phase; char slp_dtct; unsigned char snr_dbhz; char svid; char valid; } cpo_rcv_sv_data; typedef struct { double int cpo_rcv_sv_data } cpo_rcv_data; rcvr_tow; rcvr_wn; sv[ 12 ]; rcvr_tow rcvr_wn cycles pr phase slp_dtct snr_dbhz svid valid Receiver time of week (seconds) Receiver week number Number of accumulated cycles Pseudorange (meters) To convert to (0 -359.999) multiply by 360.0 and divide by 2048.0 0 = no cycle slip detected; non-zero = cycle slip detected Signal strength - db Hz Satellite number (0-31, 19-138 for WAAS) Note: add 1 to offset to current svid numbers. 0 = information not valid; non-zero = information valid 190-00516-00 GPS 10 Technical Specifications Page 21 Rev. B