Marport Scala - Page 136

Scala | V7 | Appendix
NMEA Sentence Format
First compliant
version
of Scala
VHW - Water
Speed and
Heading
$--VHW,a.a,T,b.b,M,c.c,N,d.d,K*hh<CR><LF>
1.
$--: Talker identifier*
2.
VHW: Sentence formatter*
3.
a.a,T: Heading, degrees True*
4.
b.b,M: Heading, degrees Magnetic*
5.
c.c,N: Speed, knots*
6.
d.d,K: Speed, km/hr
7.
*hh: Checksum*
1.4.0.0
VLW - Dual
Ground/
Water Distance
$--VLW,a.a,N,b.b,N,c.c,N,d.d,N*hh<CR><LF>
1.
$--: Talker identifier*
2.
VLW: Sentence formatter*
3.
a.a,N: Total cumulative water distance, nautical miles*
4.
b.b,N: Water distance since reset, nautical miles*
5.
c.c,N: Total cumulative ground distance, nautical miles*
6.
d.d,N: Ground distance since reset, nautical miles*
7.
*hh: Checksum*
1.3.3.0
VTG - Course
Over Ground and
Ground Speed
$--VTG,a.a,T,b.b,M,c.c,N,d.d,K*hh<CR><LF>
1.
$--: Talker identifier*
2.
VTG: Sentence formatter*
3.
a.a,T: Course over ground, degrees, True*
4.
b.b,M: Course over ground, degrees, Magnetic
5.
c.c,N: Speed over ground, knots*
6.
d.d,K: Speed over ground, km/hr*
7.
*hh: Checksum*
1.3.3.0
VWR - Relative
(Apparent) Wind
Speed and Angle
$--VWR,a.a,L,b.b,N,c.c,M,d.d,K*hh<CR><LF>
1.
$--: Talker identifier*
2.
VWR: Sentence formatter*
3.
a.a,L: Relative Wind angle, 0 to 180 degrees, Left or Right
(L/R)*
4.
b.b,N: Wind speed, knots
5.
c.c,M: Wind speed, meters/second
6.
d.d,K: Wind speed in Km/Hr
7.
*hh: Checksum*
1.3.3.0
Proprietary Sentences
Symbol (*) indicates which parts of the sentence Scala uses.
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