Raytheon RayChart 620, Operation Manual, Page: 56 / 121

Chapter 4: Additional Basic Functions 43
4.5 Man Overboard (MOB)
If you lose a person or object overboard, and need to return to the
location, you should use the Man Overboard (MOB) function at once.
➤
To initiate the MOB procedure, press and hold the MARK key for two
seconds.
The RayChart then performs all the following tasks automatically:
• Marks the vessel’s position, and displays the MOB symbol, with the
position assigned as waypoint 999.
• Switches to a range scale of 0.05nm per inch, in North Up mode. If
Plotter Mode is switched off (see Section 6.3), the display then
changes to the nearest range scale for which cartographic
information is available.
• Places the cursor over the MOB waypoint, and displays the MOB
symbol and position (Lat/Long or TDs) in the object data box.
• Starts (or resets) the elapsed timer, which is displayed in the cursor
data box.
• Uses the MOB position as the destination waypoint, indicated by a
circle around it.
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Note: The MOB procedure can also be initiated or cancelled if the
appropriate SeaTalk message is received by the RayChart.
➤
To cancel the MOB procedure, press and hold the MARK key for two
seconds again.