Trimble Outdoors aggps 332 사용자 설명서

C          NMEA-0183 Messages

8 4     AgGPS 332 GPS Receiver User Guide

The GGA message contains the time, position, and fix related data.

The GGA message structure is:

$GPGGA,151924,3723.454444,N,12202.269777,
W,2,09,1.9,–17.49,M,–25.67,M,1,0000*57

Table C.4 describes these fields.

1

UTC of position fix in HHMMSS.SS format

2

Latitude in DD MM,MMMM format (0-7 decimal places)

3

Direction of latitude

N:

North

S:

South

4

Longitude in DDD MM,MMMM format (0-7 decimal places)

5

Direction of longitude

E:

East

W:

West

6

GPS Quality indicator
0:

fix not valid

1:

GPS fix 

2:

DGPS fix

7

Number of SVs in use, 00-12

8

HDOP

9

Antenna height, MSL reference

10

“M” indicates that the altitude is in meters

11

Geoidal separation

12

“M” indicates that the geoidal separation is in meters

13

Age of differential GPS data record, Type 1; Null when DGPS not used

14

Base station ID, 0000-1023