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7.3.4 Speed Over Ground (SOG) via NMEA 0183
A GPS signal can be connected to the SDB-3 through the RS422 port (J4).
The
ship
’s speed over ground
is transmitted via the NMEA 0183 protocol. The SDB-3 and Bridge Panel
PC will read out the $--RMC
sentence (“Speed Over Ground”) and the value will be displayed in knots.
The
ship’s through water
is transmitted via the NMEA 0183 protocol. The SDB-3 and Bridge Panel PC
will read out the $--VHW or $--VBW
sentence (“Speed Through Water”) and the value will be displayed
in knots.
7.3.5 Speed Through Water (STW) via NMEA 0183
The
ship’s through water
is transmitted via the NMEA 0183 protocol. The SDB-3 and Bridge Panel PC
will read out the $--VHW or $--VBW
sentence (“Speed Through Water”) and the value will be displayed
in knots.