![Air traffic control tower of the airport with radio and radar facilities and optical surveillance devices Stock Photo - Alamy Air traffic control tower of the airport with radio and radar facilities and optical surveillance devices Stock Photo - Alamy](https://c8.alamy.com/comp/EWEW3W/air-traffic-control-tower-of-the-airport-with-radio-and-radar-facilities-EWEW3W.jpg)
Air traffic control tower of the airport with radio and radar facilities and optical surveillance devices Stock Photo - Alamy
Download Air Traffic Control Radio Free for Android - Air Traffic Control Radio APK Download - STEPrimo.com
Air Traffic Control Tower Interior With Computer Terminals Radio Equipment And Airport View With Commercial Airplanes Flat Style Isolated Vector Stock Illustration - Download Image Now - iStock
![Air Traffic Radio: Complete Guide to the U.K. Airband Communication Frequencies: Amazon.co.uk: Davies, Ken: 9781874515159: Books Air Traffic Radio: Complete Guide to the U.K. Airband Communication Frequencies: Amazon.co.uk: Davies, Ken: 9781874515159: Books](https://images-na.ssl-images-amazon.com/images/I/91Q-Xvr-aYL.jpg)
Air Traffic Radio: Complete Guide to the U.K. Airband Communication Frequencies: Amazon.co.uk: Davies, Ken: 9781874515159: Books
We know that when someone is speaking on the radio with ATC, he tells his call sign. But is there any other system that verifies the identity of the person speaking besides
![East Midlands Airport radio air traffic Control tower and aircraft planes waiting to depart modern terminal runway with stormy cloud sky behind Stock Photo - Alamy East Midlands Airport radio air traffic Control tower and aircraft planes waiting to depart modern terminal runway with stormy cloud sky behind Stock Photo - Alamy](https://c8.alamy.com/comp/2F9P1K3/east-midlands-airport-radio-air-traffic-control-tower-and-aircraft-planes-waiting-to-depart-modern-terminal-runway-with-stormy-cloud-sky-behind-2F9P1K3.jpg)