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Operator's Manual
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tide data, sensor offset, alarms, and the input NMEA 0183 record
fromwhich to derive the depth information. The NMEA 0183 record
should be specified by the user, because several NMEA 0183
records may contain depth information. This provides you the ca-
pability of knowing the depth source exactly.
Log - Sets the input port number, sensor type (pulse or NMEA 0183),
sensor offset, alarms, and a correction factor (if needed).
Set & Drift - Sets the mode to manual or automatic (derived from GPS).
Sets the time-out before applying calculated values. GPS calcu-
lated values are used prior to the time-out period.
Wind - Sets the input port number, units of measure, sensor offset,
alarms, and the input NMEA 0183 record from which to derive the
wind information. The NMEA 0183 record should be specified by
the user, because several NMEA 0183 records may contain wind
information. This provides you the capability ofknowing the wind
source exactly.
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HIlV 4 RL
TWR ---~t TWD
___0
Depth:
-.-PI
TWS
_ _
VMG
-.-Kn
•
!'Vs
-..
. COG
1650
SOG
7.6Kn
Set
f
169"
HDG ___
0
LOG
-.-Kn
HTS ___
0
WCU
7.6Kn
RHG
.460HM
SeVDrift:
280"/7.6Kn
TTG 00:03:29
This screen is divided into four windows. The window on the top left
provides details relating to the True Wind Angle (TWA), True Wind
Speed (TWS) and True Wind Direction (TWD), which are taken from
the NMEA 0183 record of MWV or VWR. If the wind information is
given in relative terms, the CDU calculates true values using available
GPS course and speed information to make the necessary adjustments.
Refer to the Glossary for definitions on Apparent/True Wind Angle/
Speed/Direction. To the right of the wind information is your Velocity
Made Good (VMG) towards the waypoint. The VMG data is filtered to
show the average speed from the last waypoint to your present posi-
tion towards the next waypoint. VMG is calculated from GPS data.
The CDU will also use the above data to calculate your speed parallel
to wind and can output the VPW NMEA 0183 data sentence to other
on-board instruments.
24
Version 1.5
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