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EFFECTIVITY 34-36-00 Page 5
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_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
UF94200
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GPS ANTENNA
IDENTIFICATION
FIN: 43RT1, 43RT2
LOCATION
ZONE: 210
COMPONENT DESCRIPTION
The GPS antenna is an active antenna with an integrated
preamplifier and filter and has a right hand circular
polarized and omnidirectional radiation pattern.
A 50 ohm impedance coaxial cable connects the antenna
to the MMR.
The power supply of the preamplifier is provided by
the MMR unit.
TMUMMRJ01-T02 LEVEL 3
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MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
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MMR COMPONENTS - GPS ANTENNA
TMUMMRJ01-P02 LEVEL 3
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TMUMMRJ01 LEVEL 3
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MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
UF94200
EFFECTIVITY Page 208
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34 - NAVIGATION
34-41-00 WR/PWS SYSTEM PRESENTATION
CONTENTS:
General
Weather Radar (WR) Principle
Predictive Windshear (PWS) Principle (Option)
Components
WR Indicating
PWS Indicating (Option)
Self Examination
TMUWPWA02 LEVEL 1
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WR/PWS SYSTEM PRESENTATION
GENERAL
The Airborne Weather Radar and Predictive Windshear
System (WR/PWS) detects and localizes atmospheric
disturbances and windshear events in the area scanned
by the antenna.
Note: The PWS (Predictive Windshear System) function
is optional.
WEATHER RADAR (WR) PRINCIPLE
The WR helps the pilots to avoid these areas and the
associated turbulences by determining their range and
bearing.
It can also be used for ground mapping.
The radar emits microwave pulses through a directive
antenna which picks up the return signals.
The distance is determined by the time taken for the
echo to return.
The azimuth is given by the antenna position when the
echo is received.
TMUWPWA02-T01 LEVEL 1
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MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
UF94200
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WR/PWS SYSTEM PRESENTATION - WEATHER RADAR (WR) PRINCIPLE
TMUWPWA02-P01 LEVEL 1
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MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
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WR/PWS SYSTEM PRESENTATION
PREDICTIVE WINDSHEAR (PWS) PRINCIPLE (OPTION)
A windshear event is a sudden change of wind speed
and/or direction over a small distance due to downwards
and/or upwards movement of the air.
The most critical moment for the aircraft is near the
ground level during the approach or in take-off.
TMUWPWA02-T02 LEVEL 1
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TMUWPWA02-P02 LEVEL 1
WR/PWS SYSTEM PRESENTATION - PREDICTIVE WINDSHEAR (PWS) PRINCIPLE
EFFECTIVITY 34-41-00 Page 5
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MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
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WR/PWS SYSTEM PRESENTATION
COMPONENTS
The main components are an antenna, a wave guide, a
transceiver and a control unit.
The WR/PWS system is also connected to the Navigation
Displays (NDs) via the DMCs for display.
Note: The control panels shown here after are given
as examples. They may differ according to your
aircraft configuration.
TMUWPWA02-T03 LEVEL 1
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TMUWPWA02-P03 LEVEL 1
WR/PWS SYSTEM PRESENTATION - COMPONENTS
EFFECTIVITY 34-41-00 Page 7
　
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