Words similar to transponder

Example sentences for: transponder

How can you use “transponder” in a sentence? Here are some example sentences to help you improve your vocabulary:

At 8:51, the controller noticed the transponder change from United 175 and tried to contact the aircraft.
Those four planes, like all aircraft traveling above 10,000 feet, were required to emit a unique transponder signal while in flight.
They did this on 9/11 when the transponder signals for three of the aircraft disappeared.
On American 11, the transponder signal was turned off at 8:21; on United 175, the code was changed at 8:47; on American 77, the signal was turned off at 8:56; and on United 93, the signal was turned off at 9:41.
At 8:47, seconds after the impact of American 11, United 175's transponder code changed, and then changed again.