communications Flashcards
what does the Frequency Transfer Switch do ?
stand-by frequency to active
active frequency to stand-by
page 5.10.1
what is displayed in the Frequency Indicator ?
left display - active frequency
right display - stand-by frequency (or DATA if data mode)
page 5.10.1
what is the KHz spacing of the frquency shown on the communication sistyem ?
25 and 8 KHz
page 5.10.1
how do you remove te squelch form the slected VHF radio ?
by pushing and holding the switch until is released
page 5.10.2
what does the Radio Tuning Panel OFF Switch do ?
disconnect the panel from the communication radio
page 5.10.2
after pushing the Radio Tuning Panel OFF Switch off what colour does the switch illuminate ?
white
page 5.10.2
what does it mean when the Offside Tuning Light illuminates white ?
the radio normally associated with this panel is being tuned by another radio tuning panel,
or
the radio tuning panel is being used to tune a radio not normally associated with this radio tuning panel.
page 5.10.2
what does the Outer part of the Frequency Selector Knob change ?
second and third digit in 1 MHz increments
page 5.10.2
what does the Inner part of the Frequency Selector Knob change ?
fourth, fifth and sixth digits in 8.33 KHz
page 5.10.2
what can you select when you press the AM Switch and to which type of frequency is related to ?
sets the AM (amplitude modulation)
or
USB (upper side band) mode
for the selected HF
page 5.10.2
what does it mean when the AM Light of the AM Switch illuminates white ?
HF AM is selected
page 5.10.2
what does it mean when the AM Light of the AM Switch extinguishes ?
HF USB is selected
page 5.10.2
regarding the Transmitter Selector Switches, how many switches may be selected at one time? what happens when pushing one switch when another one is already selected ?
only one switch may be selected at a time;
pushing a second switch deselects first switch
page 5.10.3
is the SELCAL light accompained by a chime, and if so why ?
YES
alerts crew that communication is desired on indicated communication radio
page 5.10.3
how do you adjust the volume in the Receiver Switches ?
rotate
page 5.10.3
can multiple Receiver Switches be selected ?
YES
page 5.10.4
is the Push to Talk Switch spring-loaded to neutral position ?
YES
page 5.10.4
what happens when the Push to Talk Switch is on RADIO ?
RADIO (radio–transmit) – keys oxygen mask or boom microphone for transmission as selected by transmitter selector.
page 5.10.4
what happens when the Push to Talk Switch is on INT ?
INT (Intercom) – keys oxygen mask or boom microphone for direct transmission over flight interphone and bypasses transmitter selector.
page 5.10.4
what does it mean when the VOICE ONLY switch light is ON ?
Allows reception of voice only identification on ADF and NAV radios
page 5.10.4
what does it mean when the VOICE ONLY switch light is OFF ?
Allows reception of voice and coded identification on ADF and NAV radios
page 5.10.4
what does the SLEW switch of the ACARS printer do ?
advances paper as long as switch is depressed
page 5.10.5
what does the Reset switch of the ACARS printer do ?
resets message light
page 5.10.5
what does the Test switch of the ACARS printer do ?
- produces character test pattern
- illuminates MSG and FAIL lights
page 5.10.5
when does the Message light of the ACARS printer illuminate ?
Illuminated (blue)
- incoming message to printer
or
- test in progress
page 5.10.5
when does the Paper Light of the ACARS printer illuminate ? what colour ?
amber - paper quantity low
page 5.10.5
what does the EVENT switch of the Print Event Module do ?
electronically marks data for retrieval
page 5.10.5
what does the PRINT switch of the Print Event Module do ?
allows pilot to print reports
page 5.10.6
what does the Push to Talk switch on the control column do when MIC is press ?
MIC (microphone) –
selects oxygen mask or boom microphone for transmission, as selected by ACP transmitter selector.
same as using ACP PTT switch (RADIO position).
page 5.10.8
what does the Push to Talk switch on the control coloum do when pressed on INT ?
INT (interphone) –
selects oxygen mask or boom microphone for direct transmission over flight interphone
bypasses ACP transmitter selector
same as using ACP PTT switch (INT position)
page 5.10.8
what happens when the Service Interphone switch is set on OFF ?
external jacks are deactivated
page 5.10.9
when the Service Interphone switch is OFF the external jacks are deactivated, is communication between flight deck and flight attendant still possible ?
YES
page 5.10.9
how is the Area Microphone activated ? (figure 1)
- Activated when an engine is started
or
- the VOICE RECORDER switch is placed in the ON position
page 5.10.10
what happens when the ERASE switch is pushed ? and for how long ?
2 sec to erase all 4 channels
page 5.10.10
when can you operate the ERASE switch to erase all four channels ?
operative only when airplane is on ground and parking brake is set
page 5.10.10
what is the purpouse of the STATUS light ?
Illuminated (momentary green) – no faults are detected during recorder TEST
page 5.10.11
when the VOICE RECORDER switch is set on AUTO, from when until when, does the switch powers the cockpit voice recorder ?
from first engine start until 5 min after the last engine shutdown
page 5.10.11
what does the VOICE RECORDER switch set on ON ?
powers the cockpit voice recorder until first engine start, then trips the switch to AUTO
page 5.10.11
what does it mean when the Amber light illuminate on the Master Call Lights under the EXIT sign ?
a lavatory call switch is activated
page 5.10.13
what does it mean when the Pink light illuminate on the Master Call Lights under the EXIT sign ?
flight deck or other flight attendant station is calling
page 5.10.13
what does it mean when the Blue light illuminate on the Master Call Lights under the EXIT sign ?
a passenger seat call switch is activated
page 5.10.13
what does the communication system includes ?
- radio communication system
- interphone communication system
- cockpit voice recorder system
- communication crew alerting system
page 5.20.1
the communication systems are controlled by using what ?
- audio control panel
- radio tuning panel
page 5.20.1
where are the CPT, FO and Observer audio system located ?
in a common remote electronics unit in the E/E compartement
do the CPT, FO and Observer audio system fuction independently and have separate circuit breakers ?
YES
page 5.20.2
If the remote electronics unit or ACP malfunctions, the ACP cannot control the remote electronics unit. What does the Audio System switches to ?
a degraded mode
page 5.20.2
what happens to the ACP when the Audio System operates in a degraded mode ?
the ACP at that station is inoperative and the crewmember can only communicate on one radio
page 5.20.2
when the ACP transmitter selectors are not functional, any transmission from that station must follow what chart ?
refer to picture attached
when the Audio System is in degraded mode can audio warnings for altitude alert, GPWS, and windshear be heard ?
NO
page 5.20.2
Can an audio system operating in the degraded mode cannot access the passenger address system through the audio control panel ?
NO
page 5.20.2
what is the aim of the Flight Interphone System ?
The flight interphone system is an independent communication network.
Its primary purpose is to provide private communication between flight deck crewmembers without intrusion from the service interphone system.
page 5.20.3
who does the Service Interphone System connect ?
flight deck,
flight attendants,
ground personnel
page 5.20.3
what is the priority of the PA announcements ?
flight deck announcements override all others
flight attendant annoucements override music system
page 5.20.4
when a call originates from the Attendant Station or the External Power Connector Panel towards the Flight Deck how is this signalled, visually and aurally ?
Call Light on the integrated audio control panel
Single High-tone chime
page 5.20.4
where are the VHF 2-3 antenna located ?
on the lower fuselage
page 5.20.5
where is the VHF 1 antenna located ?
on the upper fuselage
page 5.20.5
a tone may be heard when tuning the HF radio, how long can it last for normally and if the system fails ?
7 sec normally
more the 7 sec up to 15 sec if the system fails
page 5.20.5
how many channels does the Cockpit Voice Recorder uses ?
4 channels
page 5.20.5
how many minutes does the CVR records ?
120 min
page 5.20.5
when are recording automatically erased ?
when older then 120 min
page 5.20.5
how are the recording channel distributed ?
One channel records flight deck area conversations using the area microphone.
The other channels record individual ACP output (headset) audio and transmissions for the pilots and observer.
page 5.20.5
what does ACARS stand for ?
ARINC Communications Addressing and Reporting System
page 5.20.6
what is an ACARS ?
is an addressable digital data link system which permits exchange of data and messages between an airplane and a ground-based operation center utilizing an onboard VHF communications system.
page 5.20.6
what does the airborne system consist of ?
- a management unit in the E/E compartment,
- either a interactive display unit or multipurpose control display unit (MCDU),
and
- frequently a printer.
page 5.20.6
