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CPV350
The Loran TD selection allows the GPS chartplotter to be set up so the user can enter in
LORAN TD’s directly into the GPS chartplotter. After the TD’s have been entered, and the
user changes to ddd mm.sss (Degrees Minutes and Seconds) the TD’s will be converted
to Lat / Lon coordinates.
To use the TD Coordinate System the user must setup the Chain and Pair information of
the TD’s. If you do not know this information, refer to paper charts that show the Chain and
Pair information.
ASF1/2
:
Additional Secondary phase Factor (TD Coordinate System)
Correction to TD1/2 values which can be inserted by the user.
Alter
:
Alternate Solution (TD Coordinate System)
Parameter selected by the user that is applied in the conversion of TD values to
geographical coordinates Lat/Lon. It defines which of the two possible solutions can be
used.
14.1
COMPASS
The GPS chartplotter computes compass direction from the constellation of GPS Satellites.
For the GPS chartplotter to compute COG (Course Over Ground) direction the vessel must
be moving through the water. This menu allows the GPS chartplotter to customize the
following selections:
Bearings
: Selects between True and Magnetic. When Magnetic bearings is enabled, the GPS chartplotter applies
the selected Magnetic Variation (Auto or Manual, see next paragraph) to compute True bearing.
Variation
: Allows the user to select Auto or Manual. When Auto mode is selected the GPS chartplotter computes
the offset by the current GPS fixed location. Manual mode allows the user to enter in a magnetic variation
that is applied in the True conversion.
Calibration
: This function allows a user to enter in the offset for areas that the vessel may cruise instead of entering
in a manual offset for one location. This offset is useful for cruising vessels or vessels that travel
internationally often.
Figure 14.1 - Compass Table
14.2
INPUT/OUTPUT (NMEA)
The GPS chartplotter has 2 NMEA inputs and 3 NMEA outputs.
14.3
ALARMS
This menu is used to select and setup audible and visual Alarms. Available alarms are
Arrival, XTE, Depth, Anchor and Grounding Alarm.
Arrival Alarm
: Alerts when the vessel is approaching a single destination point or when arriving at a leg in a Route.
Available selections: 0.00 to 9.99NM.
XTE Alarm
: Alerts when the vessel is deviating from a defined course. Available selections: 0.00 to 9.99NM.
Depth Alarm
: Alerts when the received depth Value from the optional FF520 50/200kHz BLACK BOX FISH
FINDER or Depth Finder inputting NMEA data into the GPS chartplotter is lower than the selected
value. Available selections: 0000 to 3000 FT.
Anchor Alarm
: Alerts when the ships moves off a selected locations by a selected distance. Available selections:
0.00 to 9.99NM.
