Raymarine HSB Chartplotter User Manual - page 120

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