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The DME antenna transmits the DME interrogation and
receives the reply from the selected ground station.
The DME antenna operates within the low band from 962
to 1213 Mhz (1025 to 1150 Mhz for interrogation and
962 to 1213 Mhz for reply).
USERS
The DME data is sent to the FMGCs for radio distance
computation.
SUPPRESSOR
The DME and the Air Traffic Control (ATC) operate in
the same frequency range.
A suppressor coaxial between the ATC transponders and
DME interrogators is necessary to prevent simultaneous
transmission and to interrupt reception of the other
systems.
AMU
The DME audio signals are transmitted to the Audio
Management Unit (AMU) and then dispatched to the
headsets and/or loudspeakers.
The pilot can adjust the volume of the DME ground
station by pressing the VOR pushbutton on the Audio
Control Panel (ACP) or the ILS pushbutton in case of
collocated ILS/DME (if ILS mode is selected on EFIS
CTL Panel).
TMUDMEA01-T01 LEVEL 3
EFFECTIVITY 34-51-00 Page 2
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DME DESCRIPTION/OPERATION
TMUDMEA01-P01 LEVEL 3
EFFECTIVITY 34-51-00 Page 3
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DME DESCRIPTION/OPERATION
LGCIU
Each Landing Gear Control Interface Unit (LGCIU) sends
a discrete signal to the associated DME interrogator.
This is a Ground/Flight information used by the
receiver BITE module to count the flight legs.
INDICATING
DME data is sent to the Navigation Displays (NDs) and
the Primary Flight Displays (PFDs) through the Display
Management Computers (DMCs) and directly to the Digital
Distance and Radio Magnetic Indicator (DDRMI).
CFDIU
The MCDUs allow the systems to be tested and trouble
shooting to be performed via the Centralized Fault
Display Interface Unit (CFDIU).
The tests are only available on ground.
TMUDMEA01-T01 LEVEL 3
EFFECTIVITY 34-51-00 Page 4
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THIS PAGE INTENTIONALLY LEFT BLANK
TMUDMEA01 LEVEL 3
EFFECTIVITY 34-51-00 Page 5
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MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
UF94200
EFFECTIVITY Page 387
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SELF EXAMINATION
What is the suppressor coaxial between DME and ATC
used for ?
A - To inhibit DME operation.
B - To prevent simultaneous transmission and
to interrupt reception of the other
systems.
C - To prevent simultaneous transmission and
to inhibit the transmission of the other
systems.
Where is the DME 1 information displayed ?
A - On CAPT PFD and F/O PFD.
B - On CAPT PFD, CAPT and F/O ND and DDRMI.
C - On CAPT F/O PFD and ND.
TMUDMEA01 LEVEL 3
EFFECTIVITY 34-51-00 Page 6
Apr 30/98
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
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34 - NAVIGATION
34-51-00 DME INDICATIONS ON PFD AND ND
CONTENTS:
On PFD
On ND
VOR-D Pusbutton
Failure
Self Examination
TMUDMEB01 LEVEL 2
EFFECTIVITY 34-51-00 Page 1
Sep 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
UF94200
EFFECTIVITY Page 389
ALL
DME INDICATIONS ON PFD AND ND
ON PFD
When an Instrument Landing System (ILS) station is
collocated with a Distance Measuring Equipment (DME)
station, the ILS/DME distance is displayed in magenta
in the left lower corner of the Primary Flight Display
(PFD).
This data comes into view when the ILS P/B on the EFIS
control panel is pressed in.
ON ND
When the mode selector on the EFIS control panel, is
set to ROSE or ARC mode and the ADF/VOR selector is
set to VOR the DME distance is displayed in green in
the left or right lower corner of the Navigation
Display (ND).
Nothing is displayed if non collocated VOR/DME ground
station.
TMUDMEB01-T01 LEVEL 2
EFFECTIVITY 34-51-00 Page 2
Sep 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 34 NAVIGATION
UF94200
EFFECTIVITY Page 390
ALL
DME INDICATIONS ON PFD AND ND (SHEET 1/2)
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