Raymarine C140w User Reference Handbook page 27

Menu item Description
TD Setup When the Position Mode
(see above) is set to
TDs, you can specify the
chain identifier, slave,
and ASF values.
Simulator Enables or disables
simulator mode,
which allows you to
practice operating your
multifunction display
without data from a
GPS antenna, fishfinder
(DSM sonar), or any
other external unit.
Bearing Mode Determines how all
bearing and heading
data is displayed in.
This does not affect
how the chart or radar
displays are drawn.
Getting started
Options Menu item
Chain MOB Data Type
• Various options,
depending on
cartography.
Slave 1/2
• Various options,
depending on
cartography.
ASF 1/2
Variation Source
• –09.9 to +09.9
• OFF (default)
• ON
• DEMO
• True (default)
• Magnetic
Description Options
Determines whether • Dead
positional data or dead Reckoning (default)
reckoning is displayed.
• Position
Assuming that your
vessel and the Man
Over Board (MOB) are
subject to the same tide
and wind effects, the
dead reckoning setting
normally gives a more
accurate course.
This setting
• Auto (compensation
compensates for the value displayed in
naturally occuring offset brackets) (default)
of the earth's magnetic
• Manual
field. When set to Auto,
the system automatically
compensates,
and displays the
compensation value
in brackets. To enter
your own compensation
value, use the Manual
option, then specify the
value using the Manual
Variation setting (see
below).
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