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12 NMEA-0183 Output
130 5700 GPS Receiver User Guide
Reference
6 GPS Quality indicator:
0: Fix not valid
1: GPS fix
2: Differential GPS fix
4: Real Time Kinematic, fixed integers
5: Real Time Kinematic, float integers
7 Number of SVs in use, range from 00 to 12
8 HDOP
9 Orthometric height (MSL reference)
10 M: unit of measure for height is meters
11 Geoid separation
12 M: geoid separation is measured in meters
13 Age of differential GPS data record, Type 1 or Type 9. Null field
when DGPS is not used.
14 Reference station ID, ranging from 0000 to 1023. A null field when
any reference station ID is selected and no corrections are
received.
Table 12.2 GGA message fields (Continued)
Field Meaning