Cradlepoint IBR650P-INTL Manual do Utilizador descarregar pdf (Página 172)

CRADLEPOINT COR | USER MANUAL Firmware ver. 4.2.0

8.1.6 NMEA GGA, RMC, and VTG sentences

See http://aprs.gids.nl/nmea/, http://www.gpsinformation.org/dale/nmea.htm#nmea, and/or http://gpsd.berlios.de/NMEA.txt

for more information about GPS NMEA reporting.

GGA

$GPGGA – Essential fix data including 3D location and accuracy information

Example: $GPGGA,1753405,4916.450,N,12311.127,W,2,06,1.5,117.3,M,−26.574,M,6.0,0138*47

1753405

Time of fix – 17:34:05 UTC

4916.450,N

Latitude 49 deg. 16.450 min North

12311.127,W

Longitude 123 deg. 11.127 min West

Fix quality:

• 0 = fix not available

• 1 = GPS fix

• 2 = Differential GPS fix

• 3 = PPS fix

• 4 = Real Time Kinematic

• 5 = Float RTK

• 6 = estimated (dead reckoning)

• 7 = Manual input mode

• 8 = Simulation mode

Number of satellites being tracked

1.5

Horizontal dilution of precision (HDOP) – relative accuracy of horizontal position

117.312,M

Altitude in meters above mean sea level

−26.574,M

Geoidal separation: height of mean sea level above WGS-84 earth ellipsoid (negative value means

mean sea level is below ellipsoid)

6.0

Time in seconds since last update from differential reference stations

0138

Differential reference station ID number

*47

Checksum – used by program to check for transmission errors

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Cradlepoint IBR650P-INTL Manual do Utilizador Página 172