Man Overboard (Mob) - Raymarine HSB Chartplotter User Manual

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4.4 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.
You can select the type of data used for the MOB position using the set
up menus (see Chapter 5).
Note: To obtain MOB position, you need either of the following:
• Position data from a GPS or equivalent device
• Heading and speed data, so that the position can be calculated by
dead reckoning
To initiate the MOB procedure, press and hold the MARKS key for two
seconds. The system then performs the following tasks automatically:
• Redraws the chart at 1/2 nm (even if cartography is not availabe).
• Marks the current position with a MOB symbol which replaces any
current active waypoint and route.
• Displays the MOB data box, showing the bearing and distance from
your vessel to the MOB waypoint position, and the elapsed time since
the MOB was initiated.
• As your vessel moves from the MOB position, a dotted line is
displayed connecting the MOB symbol and the vessel's current
position.
• Sounds a 4-second alarm pattern every 30 seconds.
• Sends an MOB message (including bearing and distance) to other
units in the system, via the SeaTalk connection.
To cancel the MOB, press and hold the MARKS key for 2 seconds.
The chart is re-drawn at its previous scale, and the MOB symbol and
data box are removed.
Note: The MOB procedure can also be initiated or cancelled if the
appropriate SeaTalk message is received by the display unit.
MOB data box
HSB Series Chartplotter
MOB position
D4273-1