Autopilot Pop Up; Menu Timeout Period; Units; Variation Source - Raymarine Raynav 300 GPS Plotter Owner's Handbook Manual

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Autopilot Pop Up

This option controls whether or not the autopilot pop up is displayed.
When set to ON, if the status and locked heading of the autopilot changes,
they are displayed in a pop up box. The box is removed from the display
after two seconds.
When Autopilot Pop Up is set to OFF, the pop up box disabled.

Menu Timeout Period

With no time-out set, menus and soft key labels remain displayed until
you clear them by pressing ENTER, CLEAR or the appropriate dedicated
key.

Units

You can set the units for speed, depth and temperature. The units set will
be used to display all data, including information received from other
instruments on the system. However, the distance units do not affect the
instrumented range of the display, which is always in nautical miles.

Variation Source

The variation value is the difference between True and Magnetic
direction data for heading or bearing values. The Variation Source option
provides soft keys for selecting Auto or Manual variation mode, displays
the current variation value for each and highlights the currently selected
mode.
Auto Mode
If Auto mode is selected, the value of variation is obtained automatically,
normally from received data. The variation value that is used depends on
the data available, and is selected in the following order of priority:
1. Variation value from the same source as the heading data:
2. Variation value from a different source:
3. A calculated variation value, using position data, if no SeaTalk or
If heading data is being taken from NMEA, then variation is also
taken from NMEA.
If heading is taken from SeaTalk, then SeaTalk variation is used.
If heading data is being taken from NMEA, but no NMEA variation
is available, then variation is taken from SeaTalk.
If heading is taken from SeaTalk, but no SeaTalk variation is avail-
able, then variation is taken from NMEA.
NMEA value is available.
Raynav 300 GPS Plotter