JRC JLR-7700MKII Instruction Manual page 91

JLR-7700 MK 2 GPS Navigator
GGA sentence
$GPGGA,hhmmss,llll.lll,a,yyyyy.yyy,a,x,x,xxx,uxxxx,M,uxxx,M,xx,xxxx<CR><LF>
1 2 3
1 :
2 and 3 :
4 and 5 :
6 :
7 :
8 :
9 and 10 :
11 and 12 :
13 :
14 :
VTG sentence
$GPVTG,xxx,T,xxx,M,xx.x,N,,<CR><LF>
1 2 3 4
1 and 2 :
3 and 4 :
5 and 6 :
XTE sentence
$GPXTE,A,,x.xx,a,N<CR><LF>
1 2 3 4
1 :
2 :
3 :
4 :
ZDA sentence
$GPZDA,hhmmss,xx,xx,xxxx,xx,xx<CR><LF>
1 2 3
1 :
2 :
3 :
4 :
5 :
6 :
90
4 5 6 7 8
UTC time (hour, minute, and second)
Latitude (degree and minute), N/S
Longitude (degree and minute), E/W
GPS quality indicator, 0 = Fix is not available, 1 = Fix with GPS mode, 2 = Fix with DGPS
mode
Number of satellites in use
Horizontal dilution of precision (HDOP)
Antenna height above or below the mean sea level (m), the unit is fixed to M (m), (u : "+"
is output in case the height is at a positive value and "-" is output in case it is at a negative
value)
Geoidal separation, (the difference between the WGS-84 earth ellipsoid surface and
mean-sea-level (geoid) surface, "-"=mean-sea-level surface below WGS-84 ellipsoid
surface), the unit is fixed to M (m)
Age of differential GPS data
Differential reference station ID
5 6
True course (degree)
Magnetic coure (degree)
Speed (knot)
GPS status, A= Valid, V = Invalid
Cross-track error (NM)
Direction to steer (L or R)
Unit is fixed to N (nautical mile)
4 5 6
UTC time (hour, minute, and second)
Day (UTC)
Month (UTC)
Year (UTC)
Hour (local zone)
Minute (local zone)
9 10 11 1213 14