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RayChart 420/420D Chartplotter

 

 

Marks the current position as a temporary waypoint with an MOB symbol which replaces any current active waypoint and route.

Displays the MOB data box, showing the bearing and range to the MOB position, the elapsed time since the MOB was initiated and COG data.

Sends an MOB message, including bearing and range, to other units in the system, via NMEA.

Notes: (1) A suffix (c) to the POSition data indicates that the vessel’s position has been User Calibrated, see Chart Set Up, Chapter 4.

(2)The RANGE key operates normally to change chart scale.

To cancel MOB, press and hold the GOTO key for 2 seconds.

The chart is re-drawn at its previous scale and the MOB symbol and data box are removed.

3.9 Alarms

The chartplotter reports the following alarms:

Alarm

Indicates:

Arrival

Your vessel has arrived at the active waypoint: it has either

 

reached the arrival circle (the radius of which is specified) or,

 

has reached its closest point of approach (defined by a line

 

passing through the waypoint and perpendicular to the track).

XTE

Your vessel has exceeded the specified distance (maximum

 

cross track error) from the active route leg.

Anchor

Your vessel has drifted from its anchor position (set when the

 

alarm was turned on) by more than the specified distance.

No Fix

GPS fix or Differential data has been lost for more than 30 s.

The alarms are switched on or off, and the limits set, using the Chart Set Up function via the PAGE key menu, see Chapter 4.

When an alarm is triggered, the alarm buzzer sounds and a pop-up window, describing the alarm, is displayed.

To silence the alarm and clear the message, press any key.

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Image 61
Raymarine 420D manual Alarms, Range key operates normally to change chart scale