Marport Scala - Page 134

Scala | V7 | Appendix
NMEA Sentence Format
First compliant
version
of Scala
GNS - GNSS
Fix Data
$--GNS,hhmmss.ss,aaa.aa,L,bbbbb.bb,L,c--c,
dd,e.e,f.f,g.g,h.h,i.i,a*hh<CR><LF>
1.
$--: Talker identifier*
2.
GNS: Sentence formatter*
3.
hhmmss.ss: UTC of position*
4.
aaaa.aa,L: Latitude North/South (N/S)*
5.
bbbbb.bb,L: Longitude East/West (E/W)*
6.
c--c: Mode indicator
7.
dd: Total number of satellites in use (00-99)
8.
e.e: Horizontal dilution of precision
9.
f.f: Antenna altitude above/below mean sea level (geoid), in
meters*
10.
g.g: Geoidal separation, meters
11.
h.h: Age of differential data
12.
i.i: Differential reference station ID
13.
*hh: Checksum*
1.0.0.0
HDG - Heading,
Deviation
& Variation
$--HDG,a.a,b.b,M,c.c,M*hh<CR><LF>
1.
$--: Talker identifier*
2.
HDG: Sentence formatter*
3.
a.a: Sensor magnetic heading (degrees)*
4.
b.b,M: Magnetic deviation (degrees), Easterly/Westerly (E/
W)*
5.
c.c,M: Magnetic variation (degrees), Easterly/Westerly (E/
W)*
6.
*hh: Checksum*
1.0.0.0
HDT -
Heading, True
$--HDT,a.a,T*hh<CR><LF>
1.
$--: Talker identifier*
2.
HDT: Sentence formatter*
3.
a.a,T: Heading (degrees) True*
4.
*hh: Checksum*
1.0.0.0
MTW - Water
Temperature
$--MTW,a.a,C*hh<CR><LF>
1.
$--: Talker identifier*
2.
MTW: Sentence formatter*
3.
a.a,C: Temperature, degrees C*
4.
*hh: Checksum*
1.4.0.0
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