Furuno 1722C Radar Detector User Manual


 
3. PLOTTER OPERATION
3-51
Setting speed for ETA calculation
Speed, which may be input manually or automatically, is required to calculate
ETA (Estimated Time of Arrival) to a waypoint.
1. Press the [MENU] key to open the menu.
2. Press the WAYPOINTS/ROUTES soft key.
3. Press the LOG soft key.
4. Press the SPEED soft key.
SPEED FOR ETA
SPD 010.0kt
GPS AVG. SPEED
Select speed for ETA window
5. Key in speed manually in the SPD field, or use GPS speed data (if
applicable) by selecting GPS AVG. SPEED.
6. Press the ENTER soft key or the [ENTER] knob to register your selection.
7. Press the [MENU] key to close the menu.
Switching waypoints
When you arrive to a waypoint on a route, you can switch to the next waypoint
three ways: perpendicular to waypoint, arrival alarm circle and manual.
PERPENDICULAR: Automatically switches the TO waypoint when the boat
enters the arrival alarm range or the boat passes an imaginary perpendicular line
passing through the center of the destination waypoint.
ARRVL ALM CRCL: Automatically switches the TO waypoint when the boat
enters the arrival alarm range. For how to set the arrival alarm, see paragraph
3.11.2 Arrival alarm.
MANUAL: MANUAL: When the boat nears a destination waypoint, the
destination waypoint may be manually switched by using the RESTART soft key
(see page 3-50). This function is operative when “1 POINT” is selected as the
GOTO method (see page 3-45).
WPT 1
WPT 2
Perpendicular
Waypoint switched
at this point.
WPT 1
WPT 2
Waypoint switched
at this point.
Arrival Alarm Circle
How waypoints are switched in perpendicular and arrival alarm circle