05 - Communications Flashcards
(17 cards)
COMMUNICATIONS
1. What does selecting a radio transmitter switch do?
They select which radio transmitter is active and automatically enable reception on the same radio
COMMUNICATIONS
- What is the purpose of the ALT-NORM switch on the ACP?
- NORM allows for normal operation of the ACP
- ALT allows for alternate operation (degraded mode) in the event of an ACP panel malfunction
- What is the purpose of the VHF TEST switch?
It removes the automatic squelch feature, permitting reception of background noise and thereby testing receiver operation.
- What does the white offside tuning light indicate on the RTP?
A transceiver other than the onside VHF is selected
- What is the indication of a radio failure?
The two frequency indicators show “FAIL”
- What is the indication of an RTP failure?
The frequency indicators show “PANEL FAIL”
- Which switch is used to key transmission over the selected transmitter?
The PTT switch on each hand mic
a headset boom mic has multiple PTTs for transmission;
One on each side of the glare shield (MAX only), one on each control wheel, one on each ACP
- What is the purpose of the PA hand mic on the aft electronic panel?
It is only used to make PAs
- What precautions, if any, should be taken when keying an HF radio on the ground?
Warning! Do not key the HF radio while the A/C is being fueled/defueled.
- How is an incoming SELCAL indicated?
The white call (C) light illuminated on the ACP and a chime sounds
- How are the MEDLINK headset jacks controlled?
The observer’s ACP (ACP 3)
- What is the purpose of the service interphone switch on the aft overhead panel?
It provides intercommunication between the Flight Deck, Flight Attendants, and Ground Personnel
- How are incoming calls from the passenger cabin handsets indicated?
When 2 is pressed on a cabin handset, it sounds a chime and illuminates the CABIN call light on the ACP
- What does the GRD CALL switch do when pushed?
It sounds a horn in the nose wheel well
- What does the ATTEND switch do when pushed?
Pushing the ATTEND switch sounds a two-tone chime in the Passenger Cabin and illuminates both pink Master Call lights in the cabin
- In what order of radio selection does the Datalink Communication System attempt data transmission?
VHF
SATCOM
HF
EXTRA CREDIT
Which radio defaults to DATA on power up and at power down?
VHF 3
