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meters from the antenna, in an arc of + or - 135º on
either side of the aircraft centerline.
- The system must not be operated during the refueling
of the aircraft or during any refueling operation
within 100 meters.
NOTE: Although the power radiated by the system is
low, the above written safety precautions should
be observed for obvious routine reasons
(behaviour with respect to other types of radar
systems).
To avoid radiating danger, and nuisance aural
alerts the WINDSHEAR AUTO/OFF selector switch
must be selected OFF independently of the radar
selector switch.
TMUWPWG01-T01 LEVEL 2
EFFECTIVITY 34-41-00 Page 2
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WR/PWS OPERATIONAL PRECAUTIONS - SPECIAL PRECAUTIONS
TMUWPWG01-P01 LEVEL 2
EFFECTIVITY 34-41-00 Page 3
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THIS PAGE LEFT INTENTIONALLY BLANK.
TMUWPWG01 LEVEL 2
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34 - NAVIGATION
34-41-00 WR/PWS COMPONENTS
CONTENTS:
WR/PWS Transceiver
WR/PWS Mounting Tray
WR/PWS Antenna
WR/PWS Control Unit
TMUWPWJ01 LEVEL 3
EFFECTIVITY 34-41-00 Page 1
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
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WR/PWS COMPONENTS
SAFETY PRECAUTIONS
Move the radar antenna assembly carefully to prevent
injury to persons and damage to equipment (approximate
weight: 15kg (33lb)).
Note: The PWS function is optional.
WR/PWS TRANSCEIVER
IDENTIFICATION
FIN: 1SQ1
LOCATION
ZONE: 121
COMPONENT DESCRIPTION
The face of the transceiver is fitted with a TEST
pushbutton and a Liquid Crystal Display (LCD) on the
front of the transceiver.
The back is equipped with an ARINC 600 size connector
including the wave guide insert.
When the TEST pushbutton is pressed, a test sequence
is started, RADAR OK and INPUT OK appear at the end
when no faults have been detected.
WR/PWS MOUNTING TRAY
IDENTIFICATION
FIN: 9SQ
LOCATION
ZONE: 121
COMPONENT DESCRIPTION
The WR transceiver is cooled by the avionics
ventilation system. The wave guide switch ensures
switching of the RF signal from the antenna to the
transceiver in the case of dual weather radar
installation.
TMUWPWJ01-T01 LEVEL 3
EFFECTIVITY 34-41-00 Page 2
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TMUWPWJ01-P01 LEVEL 3
WR/PWS COMPONENTS - TRANSCEIVER AND MOUNTING TRAY
EFFECTIVITY 34-41-00 Page 3
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MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
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WR/PWS COMPONENTS
WR/PWS ANTENNA
IDENTIFICATION
FIN: 7SQ (Antenna Drive)
FIN: 11SQ (Antenna Plate)
LOCATION
ZONE: 110
COMPONENT DESCRIPTION
The antenna movements are ensured by 2DC motors and
the angular positions are copied by synchros.
Two switches for Azimuth (AZ) and Elevation (EL) are
installed on the antenna drive.
They are normally mechanically locked in the ON
position.
When in OFF position, the command of the corresponding
motor is cancelled.
NOTE: A position indicator for the elevation axis (+ or
-45°) is used to check the antenna drive
calibration with AZ switch in OFF position.
TMUWPWJ01-T02 LEVEL 3
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WR/PWS COMPONENTS - ANTENNA
TMUWPWJ01-P02 LEVEL 3
EFFECTIVITY 34-41-00 Page 5
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MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
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WR/PWS COMPONENTS
WR/PWS CONTROL UNIT
IDENTIFICATION
FIN: 3SQ
LOCATION
ZONE: 210
COMPONENT DESCRIPTION
The gain and tilt data are digitized by an 8 bit analog
　
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