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DCP & CCP TR/WX Direct Access Pushbuttons Menu
Figure 17.10.5
NAVIGATION SYSTEMS Description Vol. 2 17.10.7
Oct 05/06
RDR MENU Pushbutton
The RDR MENU pushbutton selects or deselects the RADAR menu on the PFD. The RADAR menu provides control, mode and function selections of the weather radar system. The items on the RADAR menu change using the MENU ADV/DATA/PUSH SELECT knob on the DCP (selection box method). The menu automatically times out after 20 seconds of inactivity.
PFD Weather Radar Menu Figure 17.10.6
RADAR Pushbutton
This pushbutton turns the radar from STANDBY to ON, and from TEST or ON to STANDBY.
RANGE/TILT/PUSH AUTO TILT Knob
RANGE Knob
The RANGE inner knob decreases or increases the PFD and MFD navigation display range. The outer range ring of the navigation format (PPOS) is numbered with the selected range. The middle range ring of ROSE and PPOS formats indicates half the selected range. The available ranges are 5, 10, 25, 50, 100, 200 and 300 NM when weather radar is in use.
The pilot should keep in mind the blanked range area of the radar display in which weather targets are not shown. When potential weather is present and one of the longer ranges is selected, it is possible for weather targets to position within the blanked range area, and therefore not show on the display. The size of the blanked range area equals one eighth of the selected range.
NAVIGATION SYSTEMS Description Vol. 2 17.10.8
Oct 05/06
TILT Knob
The knob adjusts the pitch attitude of the weather radar antenna from +15° (full up) to –15° (full down).
The weather radar antenna tilt arc is 30 degrees above and below the horizon. Fifteen degrees is for manual tilt selection, and the remaining 15 degrees is for automatic stabilization. The system automatically adjusts the antenna tilt in response to aircraft pitch and roll attitude changes.
The selected tilt angle (–15° to +15°) is displayed on the weather radar mode line of the navigation display.
PUSH AUTO TILT Button
Pushing the PUSH AUTO TILT button in the center of the TILT/RANGE knob alternately selects or deselects automatic tilt. When selected, the antenna tilt is adjusted to maintain a constant tilt/range ratio as radar range selection is changed. The tilt angle readout, on the status line, is appended by “A” to indicate that automatic tilt is enabled. The antenna tilt is automatically adjusted when aircraft altitude or radar range is changed, which keeps a ground return at the same relative position on the display.
For example, if a ground return was indicated at 40 miles on a 50-mile range setting, it would show at 80 miles (4/5 of the display) if the range setting were changed to 100 miles.
RADAR Modes
As previously mentioned, the radar modes are selectable from the PFD weather radar menu (see Figure 17.10.6). Available modes are:
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本文链接地址：庞巴迪挑战者605公务机机组操作手册 CL605-CHAPTER 17 -导航系统 NAVIGATION SYSTEMS(7)
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