Unit 9 Flashcards
(5 cards)
1
Q
Which button overrides all other communication in the event of an emergency?
A
Call button
2
Q
What are the 3 types of radios used by aircrafts and their respective frequencies?
A
Ultra-high frequency: Greater than 225 MHz
Very-high frequency: 116-151.975 MHz
High frequency: 2-29.9990 MHz
3
Q
What kind of frequency provides a means to transmit and receive emergency messages?
A
Guard
UHF-243
VHF-121.5
4
Q
What system helps identify if an aircraft is either a friendly aircraft or an unknown/enemy aircraft?
A
Transponder/IFF
5
Q
ATC assigns a 4-digit _____ code to aircraft
A
Squawk
