the first four types. Up to 250 user-defined waypoints
may be created and defi ned as any of the five types.
There are three methods to select a specific waypoint
for viewing: enter the waypoints identifier directly,
scan through the waypoint identifiers in alphabetical
order, or enter the waypoints name. If the waypoint is
an airport, it may also be selected by entering the city
where the airport is located.
a. Selecting Waypoints By Identifier. The
most direct way of selecting a specific waypoint is to
enter the identifier directly on the appropriate waypoint
1. Rotate the right outer knob to select the
appropriate waypoint type page. For the
airport type waypoints, rotate the right
inner knob to select the APT 1 page if it is
not already in view. The airport identifier
can be entered on any of the eight airport
pages but the APT 1 page displays the
2. Press the right CRSR button to bring the
cursor on the screen over the first
character of the identifier. Check the right
inner knob in the in position.
3. Turn the right inner knob to select the first
character of the identifier. Airports that
have four letter identifiers require all four
letters. Turn the knob either clockwise or
numbers wrap around with a blank
character separating the 9 and the A.
Turn the knob clockwise to scan through
the characters in alphabetical order, or
considered lower than letters.
4. Rotate the right outer knob one step
clockwise to position the cursor over the
second character of the identifier.
5. Use the right inner knob to select the
second character of the identifier.
6. Use the right outer and right inner knobs in
the same manner as above to select the
remainder of the identifier.
7. Press the right CRSR button to remove
the cursor from the right page.
8. If the waypoint is an airport, the APT 2
through APT 8 pages may be viewed by
rotating the right inner knob. Many times
not all of the characters of a waypoint
identifier need to be entered. Every time a
searches its database to offer the first
waypoint in the database that begins with
the characters that have been entered so
b. Selecting Waypoints By Scanning.
1. Select the desired waypoint type on the
right side by using the right outer knob.
2. Pull the right i nner knob to the out
3. Turn the right inner knob clockwise to
scan through the waypoints in alphabetical
order, or counter-clockwise to scan in
reverse alphabetical order. Numbers are
considered lower than letters. The faster
the knob is turned the larger the step
through the waypoints. This variable rate
scanning allows quick movement through
the list. When the knob is turned slowly,
the waypoints are scanned one at a time.
A list if the nine waypoints nearest to the present
location is located at the beginning of the complete
lists for airports, VOR's, and NDB's. It is necessary to
scan backwards, turn the knob counterclockwise,
through the complete list to reach the nearest list. The
top right portion of the page will flash the relative
position of the waypoint to the present position. Refer
to Figure 3D-7. NR 1 indicates the nearest while NR 9
indicates the ninth nearest. Waypoint pages displayed
in the nearest list do not contain a latitude and a
longitude position as they do in the complete list.
Instead, the bearing and distance to the waypoint are
displayed. In addition, nearest airport pages display
the length, surface, and lighting of the longest runway.
Once the nearest airport is displayed, the other airport
pages for the airport are available for display by
making sure the right inner knob is pressed in and
then turning it to select the desired airport page.