9
190-00607-02 Rev C
Detailed Operation
Radar Setup Page
Conversely, if vertical scanning is occurring, a
cursor line can be activated to pre-select a specific tilt
to a weather cell of interest. Once selected, changing
the scan mode to horizontal will automatically set
the tilt angle of the horizontal sweeps to the tilt angle
previously indicated by the cursor line.
The Bearing Cursor is activated any time the
Tilt/Bearing control is changed from its default posi-
tion. When in Horizontal scanning, setting the Bearing
will cause the radar to scan at that bearing when it is
switched to Vertical scanning. When in Vertical scan-
ning, setting the Tilt will cause the radar to scan at that
tilt when it is switched to Horizontal scanning.
Sector Scan (GWX 68 only)
Sector scanning is only available in the GWX 68.
Pressing the
SCTR/SCAN
key toggles between Sector
Scan (SCTR) and Normal Scan (SCAN). Selecting
Sector Scan reduces the scan angle to ±10° in horizon-
tal scanning and ±5° in vertical scanning. The Sector
Scan can be moved horizontally by changing the Bear-
ing and vertically by changing the Tilt.
Radar Alert (GWX 68 only)
The Radar Alert feature is only available in the
GWX 68. A Radar Alert is issued when a Target Alert
is active for two consecutive sweeps within 10° of the
current heading. When the Radar Alert is active, a flag
appears and is displayed for 60 seconds after the end
of the last Target Alert. The flag will be displayed along
the left side of the display, regardless of the active
function.
See
Target Alert
on the following page.
radar Setup Page
Pressing the
MENU
key while in the Radar Func-
tion will display the Setup page. The currently selected
mode is displayed at the top of the radar screen during
normal operations
.
Stabilization (STAB)
Pressing the
MENU/ENT
and then the
STAB
key
while in the Setup Function allows the stabilization
to be turned on or off. When Stabilization is On, a
command is sent to the radar head instructing it to use
the supplied gyro commands to compensate the sweep
patterns for pitch and roll of the aircraft. When stabili-
zation is activated, the STAB label will be green. When
Stabilization is turned off, the STAB label is white.
Additional status information is also shown while the
radar menu is active.
Target Alert (GWX 68 only)
The Target Alert feature is only available in the
GWX 68. The Target Alert feature will indicate where a
sufficiently high amount of total echo energy is located
in the scan between the ranges of 80 and 320 NM
regardless of the zoom scale. These echoes are shown
with a segment drawn beyond the farthest displayed
distance arc.
Radar
