Garmin GNC 250 - Manual (Page 20)

The TO/FROM arrow will indicate whether you
are ‘to’ or ‘from’ the destination waypoint.
The GNC 250’s CDI page provides you with the important information needed to
navigate directly to your destination. The destination field, located at the bottom left
of the page, displays the current destination waypoint or active route leg being navi-
gated. If no direct-to destination or route is being navigated, the destination field will
remain blank.
The graphical CDI at the top left of the page shows your position relative to the
desired course (the moving D-bar) to the destination waypoint. The TO/FROM
arrow in the center of the scale indicates whether you are heading to (an up arrow)
the waypoint or if you have passed the waypoint (a down arrow). The default setting
of the CDI scale is 5.0 nm. If you are not navigating to a destination, the CDI field
will display a ‘no actv wpt’ message, and only speed and track data will be available.
The CDI field is also used to display the GNC 250’s turn anticipation and waypoint
alert data during route operations (see section 5).
In addition to displaying your active destination and the course deviation scale,
the CDI page features four selectable fields for various distance, direction and time
options. This allows you to configure the CDI page to your preferences. The default
settings displayed are ground speed, distance, track and estimated time enroute.
10
REFERENCE
Position Page
The CDI page will display ‘No actv wpt’’ in the CDI
field if there is no active-to destination.
Active Waypoint
Ground Speed
Direction
field Distance
field
Messages or
CDI
Time Field
SECTION
1
NAV KEY
CDI Page
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