GPS 18 Technical Specifications (190-00307-00) Rev. DPage 194.2.10 Estimated Error Information (PGRME)$PGRME,<1>,M,<2>,M,<3>,M*hh<1> Estimated horizontal position error (HPE), 0.0 to 999.9 meters<2> Estimated vertical position error (VPE), 0.0 to 999.9 meters<3> Estimated position error (EPE), 0.0 to 999.9 meters4.2.11 GPS Fix Data Sentence (PGRMF)$PGRMF,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>,<12>,<13>,<14>,<15>*hh<1> GPS week number (0 to 1023)<2> GPS seconds (0 to 604799)<3> UTC date of position fix, ddmmyy format<4> UTC time of position fix, hhmmss format for GPS 18 PC/LVC; hhmmss.s format for GPS 18-5Hz<5> GPS leap second count<6> Latitude, ddmm.mmm format for GPS 18 PC/LVC; ddmm.mmmmm format for GPS 18-5Hz(leading zeros must be transmitted)<7> Latitude hemisphere, N or S<8> Longitude, ddmm.mmm format for GPS 18 PC/LVC; ddmm.mmmmm format for GPS 18-5Hz(leading zeros must be transmitted)<9> Longitude hemisphere, E or W<10> Mode, M = manual, A = automatic<11> Fix type, 0 = no fix, 1 = 2D fix, 2 = 3D fix<12> Speed over ground, 0 to 1851 kilometers/hour<13> Course over ground, 0 to 359 degrees, true<14> Position dilution of precision, 0 to 9 (rounded to nearest integer value)<15> Time dilution of precision, 0 to 9 (rounded to nearest integer value)4.2.12 Sensor Status Information (PGRMT)The Garmin Proprietary sentence $PGRMT gives information concerning the status of the GPS sensor.This sentence is transmitted once per minute regardless of the selected baud rate.$PGRMT,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>*hh<1> Product, model and software version (variable length field, for example, “GPS 18 VER 2.05”)<2> ROM checksum test, P = pass, F = fail<3> Receiver failure discrete, P = pass, F = fail<4> Stored data lost, R = retained, L = lost<5> Real time clock lost, R = retained, L = lost<6> Oscillator drift discrete, P = pass, F = excessive drift detected<7> Data collection discrete, C = collecting, null if not collecting<8> GPS sensor temperature in degrees C<9> GPS sensor configuration data, R = retained, L = lost4.2.13 3D Velocity Information (PGRMV)$PGRMV,<1>,<2>,<3>*hh<1> True east velocity, -514.4 to 514.4 meters/second for GPS 18 PC/LVC; -514.44 to 514.44 forGPS 18-5Hz<2> True north velocity, -514.4 to 514.4 meters/second for GPS 18 PC/LVC; -514.44 to 514.44 forGPS 18-5Hz<3> Up velocity, -999.9 to 999.9 meters/second for GPS 18 PC/LVC; -999.99 to 999.99 for GPS 18-5Hz
