Mark Position/Man Over Board (Mob) - NorthStar MX500 Operator's & Installation Manual

Operator's Manual
mark your present position, and to activate/deactivate Man Over Board
alarms when depresses for a few seconds. One is used as the power
on/off key, and switches between two display lighting options when
depresses for a few seconds.
The ten function keys with alpha abbreviations on them are described
in the ensuing chapters. The five function keys with symbols and the
GOTO key are described below.
The function keys are also used in the edit mode to enter alphanu-
meric information into screen data fields.
Mark Position/MAN OVER BOARD (MOB) Key
This dual function key stores your present position, date and time at
the next available waypoint location in the waypoint bank. A window
pops up on the screen to confirm your key depression, and to tell you
where the mark position is being stored. You can go into the WPT
menu and edit the coordinates or description later. The CDU is also
capable of performing this function from a remote contact closure
input via AUX Cable (MOB/Event) wire. Refer to the Appendix F of
this manual for interface instructions.
When depressed for 3 seconds, this function key activates a number
of automatic functions:
16
Most obviously, it brings up an MOB1 (Plot) screen.
This is an automatic scaling screen which selects the best zoom
level to display your present position and the MOB position. In
addition, the MOB position is displayed in the upper left corner,
so that you can quickly read the coordinates to others who may
be available to render assistance. This plot screen also provides
the vital bearing and distance back to the MOB position, as well
as your present course over ground.
The MOB position, date and time are stored in the Waypoint
Bank for future reference (e.g. log book entries).
Navigation data output on the NMEA ports (i.e. BWC and BWR),
are changed to reflect the current crisis situation. This way, other
interfaced equipment can also help guide you back to the MOB
Keypad & Display Description
Version 3.0