Filter
Top Products
9
Nav Screen #2
This navigation screen shows all navigation informa-
tion in large digital numbers. To view this screen, press
the PAGES key, then select the “NAV1” label. While it’s
selected, press the right arrow key. The screen shown
at right appears. Press the EXIT key to erase the menu.
This screen is composed of eight digital boxes. Track
(TRK) and ground speed (GS) data are all that show if
you’re not navigating to a waypoint. If you are navigat-
ing to a waypoint, then bearing (BRG), distance to waypoint (DIS), esti-
mated time en route (ETE), cross track error (XTK), destination arrow,
and the CDI also show.
The destination arrow shows the direction to the destination when the top
of the screen is pointing in your direction of travel.
Course Deviation Indicator (CDI)
Once navigation to a waypoint is established, the CDI
shows your distance to the left or right of the desired
course. The vertical line in the box shows both the di-
rection you must steer to get back on course and the
distance to the course line. For example, if you’re trav-
elling straight towards the destination, from the start, then the line stays in
the center. If you drift off course to the right, the line moves to the
left
. This
signifies that you need to steer to the left to get back on course. This is
called “chasing the needle”. If you steer towards the line (needle), you’ll
always be heading in the correct direction to get back on course.
The CDI’s range shows beneath the CDI label. On the above screen, the
CDI range is .20 mile, which is the default. You can adjust the range by
selecting the “ALARMS/CDI” label on the main menu. This is also shown
by the dotted lines at the far left and right side of the CDI. If the solid line
is on either of the dotted lines, then you are 0.20 mile off course. Remem-
ber, if the line moves to the left, then you are too far to
the right of the desired course line and vice-versa.
Using the CDI with a mapping screen helps you visu-
alize your position in relation to the course. This screen
shows that we are off course to the right. The vertical
bar has moved to the left side of the CDI, showing the
direction to the desired course line. The CDI gives you
a quick, visual indicator of your relationship between
your direction of travel and the destination.