Chapter 6: Installation
103
The NMEA 0183 standard carries similar information to SeaTalk.
However, it has the important difference that one cable will only carry
information in one direction. For this reason NMEA 0183 is generally
used to connect a data receiver and a transmitter together: for example,
a compass sensor transmitting heading to a radar, or a GPS sensor (or
Chart Plotter) transmitting position and navigation data to a radar.
SeaTalk and NMEA Data Received and Transmitted
The following table provides information on the sources and priorities of
navigation data displayed by the HSB series chartplotter display unit.
Data Received
SeaTalk
NMEA
Input Priority
Source
Position (LAT/LON)
✔
GGA RMC RMA GLL
Position (Loran C TD’s)
—
GLC GTD RMA
Speed Over Ground and
✔
RMC RMA VTG
Course Over Ground
Waypoint Identifier
✔
RMB APB BWC BWR
Bearing to Waypoint
✔
RMB BWC BWR
Distance to Waypoint
✔
RMB BWC BWR
Cross Track Error (XTE)
✔
RMB APB XTE
Depth
✔
DBT DPT
Apparent Wind Angle and Speed
✔
MWV
Boat Speed Through Water
✔
VHW
Total Log and Trip Log
✔
VLW
Water Temperature
✔
MTW
Average Boat Speed through
✔
—
the Water
Heading
✘
HDG HDM HDT VHW
Locked Heading
✔
—
Magnetic Variation
✔
RMC RMA HDG
Rudder Angle
✔
—
Time
✔
ZDA GGA RMC GLL BWC BWR
Date
✔
ZDA RMC
MOB data
✔
—
Cursor Position
✔
—
Autopilot Status
✔
—
SeaTalk and
NMEA Data
Transfer
Содержание HSB Chartplotter
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