Communcations Flashcards
Communications
How many PTT switches does each pilot have?
4
• Control wheel. • Audio control panel microphone/interphone switch. • Glareshield MIC switch. • Hand microphone PTT switch.
How is the boom microphone enable after oxygen mask usage?
Close L O2 mask door and push RESET/TEST switch.
How many audio panels are installed on the -‐200/-‐300?
• -‐300: 4. • -‐200: 3.
What audio is recorded by the cockpit voice recorder?
Any audio transmitted or received by the FLT deck as selected on the ACP as well as FLT deck area conversations.
What is the association between Radio Tuning Panels and radios?
Panels designated L, C, R and are normally associated W/ the respective VHF & HF radio (however each radio tuning panel can be used to tune any of the VHF & HF radios).
Which VHF system cannot be used for data transmission?
L VHF (configured for voice communication only).
When will DATA be displayed on the RTP active frequency window?
Provided the selected VHF radio is the default DATA radio (selected on the MFD COMM display), when a new FREQ is selected in the STBY window.
For a stuck microphone, when will a VHF radio be inhibited?
On GND W/ both engines off having transmitted for > 35s.
What is the indication for an inhibited VHF radio?
Dashes in the tuning panel FREQ window for that particular radio.
Where can HF sensitivity for HF 2 be set?
On the on-‐side tuning panel (right radio tuning panel).
When does the HF antenna tune?
When an HF transmitter is keyed after a FREQ change.
How many HF antennae are installed?
1 (common to both HF radios).
How are normal crew alerts indicated?
Visual alerts (EICAS message) and aural alerts (aural alerts for high & medium crew alert categories only).
Which radio systems are monitored by SELCAL?
VHF & HF radios.
What does the SATCOM CALL light indicate?
An incoming SATCOM call.
How is a SATCOM call terminated?
When either party (GND station or pilot) ends call.
How is communication established with the ground engineer?
Via the FLT interphone system.
How can the service interphone be used from the flight deck?
It can be connected to the FLT interphone system by selecting the service interphone switch on the OVHD panel to on.
What PA announcement has the highest priority?
FLT deck announcements from an ACP.
How is a call initiated to a flight attendant station?
Cabin interphone station(s) must be selected and the call initiated using the centre CDU by: • Line selecting the call location on the CDU display. • Entering the call code in the CDU scratchpad and pressing SEND.
Pressing CAB transmitter select switch twice W/in one second.
How is a priority call from the cabin indicated in the flight deck?
EICAS message CABIN ALERT.
How can a purser call be initiated from the ACP?
Press CAB transmitter select switch twice W/in one second for a call to the ISM’s station
What is the flight deck handset PTT switch used for?
PA announcements
How are ATC uplinked messages indicated in the flight deck?
ATC EICAS message (BLW normal engine display) and an aural chime.
What is indicated on EICAS if a long-‐winded ATC message is received?
EICAS message LARGE ATC MESSAGE appears.
How does the crew respond to an ATC uplink request?
By selecting accept or reject, cancel or STBY on the communications page on the MFD or selecting accept/reject/cancel buttons on Glareshield.
