transponder

Nothing from the transponder, a device that sends an airplane’s airline identification, flight number, speed and altitude to the radar screens.

Her startup, Astrome, is building satellites that carry transponders with 11 times the capacity of those now commonly used, which could revolutionize internet access in remote parts of the world.

For example, people traveling on Maryland toll roads without an E-ZPass transponder are billed by mail.

Without a cash option, drivers without an E-ZPass transponder are billed the toll via the mail.

Payments are deducted from accounts when vehicles equipped with transponders use the system.

The tripwire for an unfolding plot to take control of the flight would be the transponder, operated by a switch beside the pilots.

However, to use the phrase “switched off” in relation to the transponder and the ACARS was in itself prejudicial.

With so much else crumbling, the transponder lies at the heart of this great mystery.

Government officials now admit the data system and transponder quit communicating after the pilots said things were OK.

The transponder is really the tripwire for whatever began to unfold on that jet.