Communications Flashcards
What are the major components of the radio management system (RMS)
Two Integrated units, two integrated communication units, two radio management units, one tuning back up control head, and three digital audio panels.
Which two separate modules make up the integrated communication unit
A VHF communication transceiver module, and an ATC transponder module
What are the modules that make up the integrated navigation unit?
 The VHF navigation receiver module (VOR, localizer, glideslope, and marker, Beacon receiver), the ADF module, DME transceiver module, and digitizers
What is the purpose of the TBCH
The tuning backup control head can operate as standalone control unit or back up control, providing alternative means of tuning COM2 and NAV2
Which system is used to send/receive signals to/from the flight, deck, attendant, handset, passenger entertainment, and pre-recorded announcement systems
Pa System
Which displays are shown on the RMU main page
COM and NAV frequencies, ATC, TCAS, and ADF
How can the ramp attendant communicate with the flight crew?
Through the phone system by pressing the cockpit call button, which activates a chime in the flight deck headphones, and speakers
How many hours of recorded information does the CVR retain?
The most recent two hour in solid state, crush survival memory
When is the CVR energized, and how can it be erased?
Whenever the essential bus is energized, and on the ground with the parking brake applied
What indicates a successful self test of the CVR
One second activation of the status LED on the control panel
What does the emergency button on the TBCH do?
In EMRG mode, the RMS will only except NAV, and COM, tuning via the TBCH, ignoring the RMU
What effect would losing the primary radio system bus have on the COM systems
There is no longer the ability to cross side tune the RMU, and the TCBH becomes inoperative
What is the indication that an RMU has been cross side tuned
The frequencies will be shown in Amber
How would you change to direct COM tuning on the RMU, and disable the preset frequency line
Depressed the line select button for three seconds
To transmit through the oxygen mask microphone which button on the DAP must be selected
Boom/mask selected to mask
