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‐ Channel 2 and 3 for FMS radio position in DME/DME mode
‐ Channel 4 for VOR/DME display
‐ Channel 5 for ILS/DME display
The NDs and the DDRMI can display the VOR-DME information.
The ILS-DME information is displayed on NDs, and PFDs when the flight crew has pressed the LS
pushbutton on the EFIS control panel.
MARKER BEACON
Applicable to: ALL
One marker beacon system is included in VOR receiver 1.
The PFD displays the outer, middle and inner marker signals. (Refer to DSC-31-40 GENERAL).
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
NAVIGATION
RADIO NAV - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-34-30-30 P 1/2
FCOM 19 AUG 10
DIGITAL DISTANCE AND RADIO MAGNETIC INDICATOR (DDRMI)
Applicable to: ALL
(1) Compass card
ADIRU 1 normally supplies the signal that positions the compass card. ADIRU 3 supplies it
when selected by the ATT HDG SWITCHING selector.
Display the MAG or TRUE heading as selected by the NORTH REF pushbutton.
Above 82.5 ° North or 60.5 ° South, or in the north magnetic polar region, TRUE heading is
automatically selected.
(2) Bearing pointers
Indicate the magnetic bearing to the station received by VOR 1 or ADF 1 (dashed pointer) and
VOR 2 or ADF 2 (double pointer).
(3) VOR/ADF 1 (2) flags
In view in case the :
VOR or ADF receiver fails (VOR/ADF selector position ‐ indicates the failed receiver), or
‐ RMI has an internal failure, or
‐ Heading signal from ADIRS is not valid, or
‐ Power supply fails.
Associated with the flag, the relevant pointer moves to the 3 o'clock position.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
NAVIGATION
RADIO NAV - CONTROLS AND INDICATORS
A330/A340 FLEET DSC-34-30-30 P 2/2
FCOM 19 AUG 10
Note: In ELEC EMER configuration, only ADF 1 or VOR 1 is available at a time, according
to the position of the VOR 1/ADF 1 selector.
(4) HDG flag
Appears, associated with VOR/ADF flags display, when :
‐ The heading signal from the supplying ADIRS is not valid, or
‐ The RMI has an internal failure, or
‐ Power supply fails.
(5) DME 1 (2) counters
DME 1 and 2 distances are indicated in NM (and 1/10 th. below 20 NM) Below 1 NM, 0 is
shown.
(6) VOR/ADF selector
‐ VOR 1 or ADF 1 on single pointer.
‐ VOR 2 or ADF 2 on double pointer.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
NAVIGATION
RADIO NAV - WARNINGS AND CAUTIONS
A330/A340 FLEET DSC-34-30-40 P 1/4
FCOM 19 AUG 10
RADIO MANAGEMENT PANEL (RMP)
Applicable to: ALL
(1) ON/OFF switch
Controls the power supply to each RMP.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
NAVIGATION
RADIO NAV - WARNINGS AND CAUTIONS
A330/A340 FLEET DSC-34-30-40 P 2/4
FCOM 19 AUG 10
(2) NAV key (transparent switchguard)
When pressed : Radio navigation backup mode is engaged. The VOR and ILS
(MLS) receivers are controlled by the RMP, and no longer by
the FMGC.
The green monitor light comes on.
NAV radio control may be returned to the FMGC by pressing
the NAV key again on RMP 1 and 2.
Note: • Backup tuning mode must be selected on RMP 1
and 2, in case of both FMGC or MCDUs failure. In
emergency electrical configuration, only RMP1 is
supplied.
• Pressing the NAV key on RMP3 has no effect.
• In NAV backup mode, radio communication
systems can be selected as in normal mode.
• Setting one RMP to NAV backup mode removes
NAV AIDS tuning capability from both FMGCs.
• The ADF key is not applicable, as no ADF is
installed on the aircraft.
(3) STBY NAV keys
When the appropriate radio nav key is pressed, and provided the NAV key is on, the ACTIVE
window displays the present frequency.
The monitor light comes on green on the selected key, it goes off on the previously selected
STBY NAV or COM key.
(4) Rotating knob
Two concentric knobs allow frequency preselection for radio com systems and standby nav
systems, and the selection of the required VOR or ILS course.
The desired frequency or course is set in the STBY/CRS window.
‐ Frequency setting :
The outer knob controls the most significant digits, the inner knob controls the least
significant digits. A rate multiplier speeds up the tuning when the knob is rotated rapidly.
‐ setting course :
Performed with the inner knob only.
(5) Transfer key
The flight crew presses this key to interchange ACTIVE and STBY frequencies. This action
tunes the selected receiver to the new ACTIVE frequency.
A330/A340 FLIGHT CREW
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 3(125)
