EAWS Aviation Communications and Navigation Systems 1

Question 1

What is the military UHF guard (emergency) frequency monitored by all military aircraft and installations?

Accepted Answer

243.0 MHz

Answer

243.0 MHz is the military UHF emergency guard frequency, exactly double the civilian VHF guard frequency of 121.5 MHz.

Question 2

Which internationally recognized VHF frequency is used for civilian aeronautical distress communications?

Accepted Answer

121.5 MHz

Answer

121.5 MHz is the international aeronautical VHF emergency frequency monitored by civil aircraft and many rescue agencies.

Question 3

Which frequency band is primarily used for military tactical aviation voice communications due to its line-of-sight reliability?

Accepted Answer

UHF (300–3000 MHz)

Answer

UHF is the primary military aviation tactical voice band because of its reliable line-of-sight propagation and resistance to some forms of interference.

Question 4

What does COMSEC stand for in the context of naval aviation?

Accepted Answer

Communications Security

Answer

COMSEC stands for Communications Security, encompassing all measures taken to protect classified and sensitive information transmitted over communication systems.

Question 5

In standard radio communication procedures, what does transmitting 'OVER' at the end of a message indicate?

Accepted Answer

My transmission is complete and I expect a reply

Answer

'OVER' signals that your transmission is complete and you are awaiting a response from the other station.

EAWS - Enlisted Aviation Warfare Specialist Practice Test

EAWS - Enlisted Aviation Warfare Specialist Practice Test

EAWS Aviation Communications and Navigation Systems 1