190-01115-01 G3X/G3X Touch Installation Manual - RS-232 Text Output Format
Rev. AC Page B-5
B.6 GPS Data Message Format
The GPS Data message is transmitted once per second.
Table B-3 GPS Data Message Format
Field Name Offset Width Units Notes Min Max
Escape character 0 1 '@'
UTC year 1 2 years last two digits of UTC year 00 99
UTC month 3 2 months 01 12
UTC day 5 2 days 01 31
UTC hour 7 2 hours 0 23
UTC minute 9 2 minutes 0 59
UTC second 11 2 seconds 0 59
Latitude hemisphere 13 1 'N' for north or 'S' for south
Latitude degrees 14 2 degrees 0 90
Latitude minutes 16 5
0.001
minutes
minutes x 1000 0 59999
Longitude hemisphere 21 1
Longitude degrees 22 3 degrees 'E' for east or 'W' for west 0 180
Longitude minutes 25 5
0.001
minutes
minutes x 1000 0 59999
Position status 30 1
'g' = 2D GPS position
'G' = 3D GPS position
'd' = 2D differential GPS
position
'D' = 3D differential GPS
position
'S' = simulated position
'_' = invalid position
Horizontal position error 31 3 meters 000 999
Altitude 34 6 meters height above or below MSL -99999 +99999
East/west velocity
direction
40 1 'E' for east or 'W' for west
East/west velocity
magnitude
41 4
0.1
meters/sec
0000 9999
North/south velocity
direction
45 1 'N' for north or 'S' for south
North/south velocity
magnitude
46 4
0.1
meters/sec
0000 9999
Vertical velocity
direction
50 1 'U' for up or 'D' for down
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