4. INSTALLATION
45
4.9 IEC 61162-1 Data
Sentences
The table below shows the data sentences
which can be input to and output from your
fish finder. The transmission speed for both
input and output is 4,800 bps. Data is output
at two-second intervals.
Input/output data sentences
Order of priority
Output data sentences
*Available with connection of applicable sen-
sor or navaid.
Sentenc
e
Meaning
BWC Bearing (magnetic) and distance
to waypoint
GGA Global positioning system (GPS)
fix data
GLL Geographic position - latitude/
longitude
GNS GNSS fix data
HDG Heading, deviation and variation
HDT Heading, true
MDA Atmospheric pressure
MTW Water temperature.
MWV Wind speed and angle
RMA Lat/Lon, SOG, course
RMB Nav data (waypoint, etc.)
RMC Lat/Lon (GPS), SOG, course
VHW Water speed and heading
VTG Course over ground and ground
speed
XTE Cross track error
ZDA Time and date
Data Priority
Latitude/Longitude: GNS>GGA>RMC>
RMA>GLL
Course (true): VTG>RMC>RMA
Course (magnetic): VTG
Ground speed: VTG>RMC>RMA
Water speed: VHW
Distance to waypoint: BWC>RMB
Bearing to waypoint
(true):
BWC>RMB
Bearing to waypoint
(magnetic):
BWC
Heading (true): HDT>VHW
Heading (magnetic): HDG>VHW
Cross track error: XTE>RMB
Atmospheric pressure: MDA
Water temperature: MTW
Wind speed and angle
(true/apparent):
MWV
Sentence Meaning
DBS Depth from sea surface
DBT Depth below transducer
DPT Depth
MTW* Water temperature
RMB* Recommended minimum navi-
gation information
TLL* Target position, output by
MARK key.
VHW* Speed through the water
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