Table 43: Recommended-Minimum-Specific Sentence; Table 44: Track Made Good/Ground-Speed Sentence - NorthStar 8700 Technical Reference Manual

$GPRMC,224512.45,G,2518.3847,S,08339.8367,E,003.8,311.5,080793,,*2E<CR><LF>
05/01/97 REV H

Table 43: Recommended-minimum-specific sentence

Data field Contents
$GPRMC,hhmmss.ss,A,llll.llll,a,yyyyy.yyyy,a,xxx.x,xx
x.x,xxxxxx,,*hh<CR><LF>
UTC of position fix
hhmmss.ss
Status. A = data valid; V = nav receiver warning
A
Latitude. Two digits of degrees and minutes, four dig-
llll.llll
its of decimal fraction of minutes.
N/S (North or South)
a
Longitude. Three digits of degrees; two digits of min-
yyyyy.yyy
utes; four digits of decimal fraction of minutes.
y
E/W (East or West)
a
Speed, in knots
xxx.x
Track (track made good, measured in clock-
xxx.x
wise-from-North direction, at the current position.
Range: 0 to 360 )
Date (two digits for day, month, and year: ddmmyy)
xxxxxx
Example S:
In this example, UTC is 22:45:12.45; status is Good; latitude is 25
18.3847' South; longitude is 083 39.8367' East; speed is 3.8 knots; head-
ing is 311.5 from North; and date is 08/07/93.
Track made good and ground speed ($GPVTG)
This message provides actual track made good and speed relative to the
ground.

Table 44: Track made good/ground-speed sentence

Data field Contents
$GPVTG,xxx.x,T,,,xxx.x,N,xxx.x,K*hh<CR><LF
Track
xxx.x
Degrees true
T
Speed
xxx.x
Knots (speed, in number of)
N
Speed
xxx.x
Section 10 - NMEA protocols
PAGE 59