Honeywell Bendix/King KMD 550 Pilot's Manual Addendum page 50

Normal Operation
NOTE: If a message such as
that shown in Figure 41 is
displayed, it may be that the
system has not had time to
acquire a signal or has
acquired a signal and not yet
received all the data for a
NEXRAD image. If this mes-
sage is still present after
more than 5-10 minutes,
refer to the Messages sec-
tion of this addendum.
Figure 41
Always make note of the age of the data displayed in the bottom right
corner. Remember, the older the age the more suspect the accuracy of
the data. The colored bar will be green the first 50% of the expiration
time period for the displayed data then turn yellow. Also, delays occur-
ring prior to the weather distributor time stamping the data are not
reflected in the displayed age. These delays can range from one to
seven minutes.
If no data update has been received for 75 minutes the NEXRAD image
is discarded and no longer displayed.
2. Press the RNG▲ ▲ / / RNG▼ ▼ Key to zoom in on the display. The map is
centered on the present position indicated by the symbolic aircraft.
3. To view a specific area of weather, move the joystick in the desired
direction. A pointer will appear on the display connected to the symbolic
aircraft with a flashing line (see Figure 42). The distance and bearing
between present position
and the pointer is shown at
the bottom center of the dis-
play. As the joystick is held
the pointer will continue to
move. When the pointer
reaches the edge of the dis-
play the map will pan to keep
up with pointer movement.
Release the joystick to stop
moving the pointer. Press the
RNG▲ ▲ / / RNG▼ ▼ keys to zoom
in or out on the pointer posi-
tion.
Figure 42
37
Revision 6 Feb/2009
KMD 550/850 FIS Addendum