7
190-00607-02 Rev C
Detailed Operation
GDL 69/69A - FIS
NEXRAD Color Legend
current
The Current sub-function provides an overlay of the
currently selected weather information. The three pages
of menu item selections allow you to modify the display
of NexRad, radar coverage, METARs, lightning, thun-
derstorm cell movement, cloud tops, echo tops, winds
aloft, information labels, flight plan course line, weather
legends, map and navaids, and map orientation.
1. Press the
FN
key and then the
FIS
functon key
when dsplayed.
2. Press the fourth functon smart key on the rght
to select the Current (
Crnt
) sub-functon.
. The
MENU/ENT
key brngs up menu tems for
current weather products and more detal on
each sub-functon.
GDL 69/69A FIS Current Menu Page 1 with NEXRAD Activated
NEXRAD
When enabled, NEXRAD weather information is
shown. Composite data from all of the NEXRAD radar
sites in the United States is shown. This data is com-
posed of the maximum reflectivity from the individual
radar sweeps. The display of the information is color-
coded to indicate the weather level severity. Informa-
tion about which sites are operational or off-line is
also available (see coverage below). The update rate is
every five minutes. Refer to the legend for a descrip-
tion of the color code.
The Nexrad option has selections of Nxrd On,
Nxrd Off, and Animate. The Animate selection will
step through a number of time intervals to provide a
view of weather trends.
GDL 69/69A FIS Current Menu Page 1 with NEXRAD Animation
Up to the last 12 images are looped continuously.
The age of individual images is shown in the lower
right corner of the display. The time format shows
hours and minutes with the Zulu date and time. For
instance, 1:02 - 181930Z means the information is
one hour and 2 minutes old and was reported on
the 18th day of the month at 1930 Zulu time. When
Nexrad animation is turned on, Coverage, METARs,
Lightning, Cell Move, Cloud Tops, Echo Tops, and