Magellan GPS 315 User Manual - Page 63

Global Positioning System Fix Data, Geographic Position - Latitude/Longitude - update

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GGA Global Positioning System Fix Data 1 2 3 4 5 6 7 8 9 10 11 GGA,hhmmss.ss,1111.11,a,yyyyy.yy,a,x,xx,x.x,x.x,M,x.x, 12 13 14 M,x.x,xxxx*hh 1 UTC of Position 2-3 Latitude - N/S 4-5 Longitude - E/W 6 GPS Quality Indicator 0 = fix not available or invalid 1 = GPS SPS Mode, Fix valid 2 = Differential GPS, SPS Mode, fix valid 3 = GPS PPS Mode, fix valid 7 Number of satellites in use (00-12, may be different from the number in view) 8 Horizontal dilution of precision 9 Antenna altitude above/below mean sea level 10 Units of antenna altitude, meters 11 Geoidal separation - difference between the WGS-84 earth ellipsoid and mean sea level (geoid), "-" = mean sea level below ellipsoid 12 Units of geoidal separation, meters. 13 Age of Differential GPS data - Time in seconds since last SC104 Type 1 or 9 update, null field when DGPS is not used 14 Differential reference station ID, 0000-1023 GLL Geographic Position - Latitude/Longitude 1 2 3 4 5 6 GLL,1111.11,a,yyyyy.yy,a,hhmmss.ss,A*hh 1-2 Latitude, N/S 2-3 Longitude, E/W 4 UTC of position 6 Status A = Data valid V = Data not valid Magellan GPS 315/GPS 320 55

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Magellan GPS 315/GPS 320
55
GGA
Global Positioning System Fix Data
1
2
3 4
5 6 7
8
9
10 11
GGA,hhmmss.ss,1111.11,a,yyyyy.yy,a,x,xx,x.x,x.x,M,x.x,
12 13
14
M,x.x,xxxx*hh
1
UTC of Position
2-3
Latitude - N/S
4-5
Longitude - E/W
6
GPS Quality Indicator
0 = fix not available or invalid
1 = GPS SPS Mode, Fix valid
2 = Differential GPS, SPS Mode, fix valid
3 = GPS PPS Mode, fix valid
7
Number of satellites in use (00-12, may be different
from the number in view)
8
Horizontal dilution of precision
9
Antenna altitude above/below mean sea level
10
Units of antenna altitude, meters
11
Geoidal separation - difference between the WGS-84
earth ellipsoid and mean sea level (geoid), “-” =
mean sea level below ellipsoid
12
Units of geoidal separation, meters.
13
Age of Differential GPS data - Time in seconds since
last SC104 Type 1 or 9 update, null field when DGPS
is not used
14
Differential reference station ID, 0000-1023
GLL
Geographic Position — Latitude/Longitude
1
2 3
4 5
6
GLL,1111.11,a,yyyyy.yy,a,hhmmss.ss,A*hh
1-2
Latitude, N/S
2-3
Longitude, E/W
4
UTC of position
6
Status
A = Data valid
V = Data not valid