Filter
Top Products
4-8
RayChart 420/420D Chartplotter
Autozoom will not zoom in beyond the largest cartographic scale (see also
Plotter Mode). When in MOB mode, Autozoom is selected automatically and
will zoom in as far as possible, irrespective of the selection of Plotter Mode.
Unless MOB is active Autozoom will not be activated if there is no cartridge or
if the area being viewed is not covered by the cartridge.
Screen amplifier
Screen amplifier mode makes better use of the screen by positioning the vessel
on the screen so as to increase forward visibility. The screen amplifier is only
active when the cursor is ‘homed’ on the vessel.
COG vector
When ON, a vector line from the vessel is drawn in the direction of COG. This
line extends to the edge of the screen. If COG is not valid, no line is drawn. The
selected setting is retained when the unit switched off.
Arrival circle
The selected value is used as the arrival circle radius. When approaching the
target waypoint, this is the distance at which the arrival alarm sounds. The
selected setting is retained when unit switched off. Arrival criteria are met when
the arrival circle is entered or a line perpendicular to the desired track and
passing through the waypoint is crossed.
Anchor alarm
The selected value is used as the anchor alarm distance. If the vessel moves
outside of the selected distance from its position (at the time that the alarm was
enabled) the alarm sounds and an alarm message is displayed.
To silence the alarm, press any key. This removes the warning and resets the
distance, ie. the alarm will not sound again unless the vessel moves the selected
distance from its position (at the time that the alarm was silenced). The alarm is
set to OFF on power up.
XTE alarm
The selected value is used as the cross track error limit. The alarm sounds when
the cross track error exceeds the selected limit when a GOTO or a Route Follow
is in progress and an alarm message is displayed.
Chart text
When ON, Chart text, eg. place names are shown on the screen. The selected
setting is retained when the unit switched off.