Communications Systems Flashcards
What are the three different types of communication systems on the aircraft.
- internal communications
- external communications
- aircraft identification and localisation
What external comms are on the aircraft
V/UHF
HF
SATCOM
MIDS
VHF
what external comms on the aircraft have embedded encrypted.
V/UHF
HF
Additional SATCOM system
MIDS
what two types of identification and localisation are on the aircraft.
Identification friendly or foe (IFF)
Emergency Localiser Transmitter (ELT
What is the RMS, and how many are on board.
RMS - Radio management system, there are two on board the aircraft. it communicates with all comms systems on board.
Utilises:
MCDU
MILCOM
MILNAV
What is the AMS
AMS - Audio management system.
what three components are apart of the AMS
Digital audio management unit - DAMU
Signal conversion and interface unit - SCIU
emergency interphone radio amplifiers - EIRAS
How many V/UHF systems are on board and what are their functions, and what frequency do they operate within
V/UHF 1 - short range comms in voice only
V/UHF 2 - short range comms in voice only
V/UHF 3 - short range comms in voice and data mode
30-399.975MHz
What are the three modes of V/UHF
Manual
channel
anti-jamming
HF radios - describe operation and frequency
long range in voice mode only, operates within 2-30MHz
what are the 5 modes of HF
standby
emergency
manual
channel
ALR
Explain VHF systems
short range comms in data mode and can use voice mode as backup.
controlled by RMS
explain SATCOM systems
allows exchange of information between aircraft and ground net
provides voice and data transmission (ACARS/ATSU)
explain MIDS system
tactical comms, navigation and identification.
Explain IFF system
provides aircraft capability to identify/identified by other aircraft, gives information for for enhanced tactical collision avoidance system (ETCAS)
Aircraft has two IFF transponders
