Comms P240-300

After Cold Start the MU did not receive the A/C registration, what number will be displayed on the ACARS MU?

• 00

• 2

• 3

• 1

In SATCOM what is the Airborne Earth Station?

• The Aircraft

• A system for monitoring air traffic
• A ground earth station

• A satellite dish

SATCOM provides reliable what communications?

• fiber optic
• satellite
• transoceanic

• landline

The 2 main applications for SATCOM are what?

• Video streaming

• Data transmission

• Broadcasting

• Voice communication

What transmits/receives satellite communications in the L-band

frequencies (1530-1660.5 MHz)?

• GPS and Beidou satellites
• Airborne earth station

• Galileo and Glonass satellites
• Ground station

What transmits/receives satellite communications in the C-band

frequencies (4-6 GHz)?

• Fiber optic cables
• Airborne earth station

• Wireless routers
• Ground earth station

SATCOM satellites provide coverage between how many degrees of latitude North and South?

• 70

• 65

• 75

• 80

How many INMARSAT satellites are there in total for SATCOM?

• 3

• 8

• 16

• 4

What must the user do before using the satellite communications system for SATCOM?

• Turn on the satellite communications system

• Log on

• Log out

• Log off

What compensates for the

Doppler shift of frequencies between the aircraft and the satellite?

• GES Doppler rectifier

• Amplitude modulation
• RADALT

• AES transmitted frequency