Menu item

Description

Options

TD Setup

When the Position Mode

Chain

 

(see above) is set to

Various options,

 

TDs, you can specify the

 

chain identifier, slave,

 

depending on

 

and ASF values.

 

cartography.

 

 

Slave 1/2

 

 

Various options,

 

 

 

depending on

 

 

 

cartography.

 

 

ASF 1/2

 

 

–09.9 to +09.9

 

 

 

 

Simulator

Enables or disables

OFF (default)

 

simulator mode,

ON

 

which allows you to

 

practice operating your

DEMO

 

multifunction display

 

 

 

without data from a

 

 

 

GPS antenna, fishfinder

 

 

 

(DSM sonar), or any

 

 

 

other external unit.

 

 

Bearing Mode

Determines how all

True (default)

 

bearing and heading

Magnetic

 

data is displayed in.

 

This does not affect

 

 

 

how the chart or radar

 

 

 

displays are drawn.

 

 

Menu item

Description

Options

MOB Data Type

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.

 

 

Variation Source

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).

 

 

Getting started

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Raymarine C140w, C90w manual Menu item Description Options TD Setup, Chain, Slave 1/2, ASF 1/2, Simulator, Bearing Mode