Simrad SC90, Руководство по установке

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419050/B
409
Description
This description is not complete. For additional details, refer to the NMEA standard.
1
$—
: Talker identifier
2
DPT
: Datagram identifier
3
x.x
: Depth (Metres), Relative to the transducer
4
y.y
: Offset (Metres), Relative to the transducer
Positive offset numbers provide the distance from the transducer to the water
line. Negative offset numbers provide the distance from the transducer to the part
of the keel of interest.
5
z.z
: Maximum range scale in use
6
*hh
: Checksum
Tip
If you need the depth below the keel, use the NMEA DBK datagram. If you need the
depth below the surface, use the NMEA DBS datagram. If you need the depth below the
transducer, use the NMEA DBT datagram.
NMEA GGA datagram
The NMEA GGA datagram transfers the time, position and fix related data from a global
positioning system (GPS).
Format
$--GGA,hhmmss.ss,llll.ll,a,yyyyy.yy,a,x,zz,d.d,a.a,M,g.g,M,r.r,cccc*hh
Description
1
$—
: Talker identifier
2
GGA
: Datagram identifier
3
hhmmss.ss
: Coordinated Universal Time (UTC) of the current position
4
llll.ll,a
: Latitude North/South (Degrees, minutes and hundredths)
N = North
S = South
5
yyyyy.yy,a
: Longitude East/West (Degrees, minutes and hundredths)
E = East
W = West
Datagram formats