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intensities).
WX + T : The screen only displays turbulence areas (in precipitation areas) in magenta
(within 40 nm).
TURB : The screen only shows turbulence areas.
MAP : The radar operates in ground mapping mode. Black indicates water. Green
indicates the ground and Amber indicates cities and mountains.
(4) TILT knob
This knob controls the antenna tilt.
Radar 1 depends on ADIRS 1. Radar 2 depends on ADIRS 2. ADIRS 3 replaces either one of
the ADIRS, if ATT HDG selector is set to CAPT 3 or F/O 3.
Zero represents the horizon, as seen by the ADIRS.
(5) MULTISCAN toggle switch
AUTO : Automatically activates tilt to optimize weather detection and minimize ground
clutter.
MAN : When set to MAN, the crew can then manually adjust the tilt by using the TILT
knob.
(6) GCS toggle switch
AUTO : Suppresses the ground echo on the screen.
OFF : Normal use of the radar.
(7) PWS - toggle switch �� (only operative, if the predictive windshear function is installed)
AUTO : Activates the predictive windshear function. Windshear areas are detected by
antenna scanning below 2 300 ft RA, even if the SYS switch is set to OFF. They
are displayed on the ND, if below 1 500 ft.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
NAVIGATION
WEATHER RADAR - CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-34-60-20 P 6/8
FCOM 19 AUG 10
OFF : The predictive windshear function is off.
CONTROL PANEL
Applicable to:
(*) If only one radar system is installed, “2” is replaced by an “INOP” sticker.
(1) Transceiver 1-2 switch
This switch selects one radar or turns off both radars.
Note: If there is only one radar on the aircraft, no weather image is displayed when system
2 is switched on.
(2) GAIN knob
Adjusts the sensitivity of the receiver in all modes.
AUTO : Automatically adjusts the gain to the optimum setting.
(3) Mode selector
WX : Weather mode : colors indicate the intensity of precipitation (Black indicates
the lowest intensity. Green, amber and red indicate progressively higher
intensities).
WX / TURB : The screen shows turbulence areas (in precipitation areas) in magenta (within
40 nm).
MAP : The radar operates in ground mapping mode. Black indicates water. Green
indicates the ground and Amber indicates cities and mountains.
(4) TILT knob
This knob controls antenna tilt.
Radar 1 depends on ADIRS 1, radar 2 �� on ADIRS 2. ADIRS 3 replaces either ADIRS if ATT
HDG selector is used.
Zero represents the horizon as seen by ADIRS.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
NAVIGATION
WEATHER RADAR - CONTROLS AND INDICATORS
A318/A319/A320/A321 FLEET DSC-34-60-20 P 7/8
FCOM 19 AUG 10
(5) TILT toggle switch
AUTO : Automatically activates tilt to optimize weather detection and minimize ground
clutter.
MAN : When set to MAN, the crew can then manually adjust the tilt by using the TILT
knob.
(6) PWS switch �� (only operative, if the predictive windshear function is installed)
AUTO : Activates the predictive windshear function. Windshear areas are detected by
antenna scanning below 2 300 ft RA, even if the SYS switch is set to OFF. They
are displayed on the ND, if below 1 500 ft.
OFF : The predictive windshear function is off.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
NAVIGATION
WEATHER RADAR - CONTROLS AND INDICATORS
Intentionally left blank
A318/A319/A320/A321 FLEET DSC-34-60-20 P 8/8
FCOM 19 AUG 10
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
NAVIGATION
WEATHER RADAR - WINDSHEAR PREDICTION FUNCTION
A318/A319/A320/A321 FLEET DSC-34-60-30 P 1/8
FCOM 19 AUG 10
GENERAL
Applicable to: ALL
The weather radars have a Predictive Windshear System (PWS) that operates when :
The PWS switch is in the AUTO position (Even if ‐ the weather radar is OFF), and
‐ The aircraft is below 2 300 ft AGL, and
‐ The ATC is switched to the ON, or AUTO, or XPDR, or XPNDR, position (depending on the ATC
panel), and
‐ Either engine is running.
Note: When two weather radars are installed, if the selected weather radar fails, the PWS function
is recovered by selecting the non-failed weather radar on the control panel.
The system scans the airspace, within a range of 5 nm ahead of the aircraft, for windshears.
Below 1 500 ft, when the system detects windshear, depending on the range selected on the ND,
a warning, caution, or advisory message appears on the ND. Predictive windshear warnings and
cautions are associated with an aural warning.
　
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