2. RADAR, CHART RADAR OPERATION
2-51
2.33.4 How to erase a drop mark
Erase drop mark from menu
1. Open the menu then select the [5 MAP MARK] and [1 MARK SETTING] menus.
2. Select [7 DROP MARK].
3. Select [OFF].
4. Close the menu.
Erase drop mark by trackball
Right-click the applicable Drop mark box to show the context-sensitive menu then se-
lect [Drop 1 Off] (or [Drop 2 Off]). The drop mark and its data are erased.
2.34 Anchor Watch
The anchor watch is used to monitor if the ship is staying at anchor. If your vessel trav-
els more than the distance set here, the Alert 495 "Anchor Watch Error" appears in the
[Alert] box and the audio alarm sounds.
How to activate anchor watch
1. Open the menu then select [8 INITIAL SETTING] and [4
ALERT] menus.
2. Select [3 ANCHOR WATCH].
3. Select [ON]. Use the scrollwheel to set the alarm radius
(0.01 to 9.99 NM).
4. Close the menu.
Your ship's position, where
you start the anchor watch.
Alarm
setting
: Alarm triggered
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