A transponder is a transmitter that sends out high-frequency radio signals that can be picked up by radar and by on-board collision avoidance systems. The signals tell air traffic controllers and ...

While driving on toll roads in Florida, the U.S. leader in tolled miles, there are three ways to pay. Cash is accepted, though it is being phased out. Ignoring tollbooths works, with the result of ...

In Euer's news release, she linked to a WPRI-TV report on the failing transponders, where RITBA executive director Lori Caron ...

Q: A few readers have asked lately about the Express Lanes on 15 Freeway in Riverside County and the rules regarding using a transponder to drive in these lanes. One reader asked if the transponder ...

As the search continues for the missing Malaysia Airlines flight, a key unanswered question is what happened to the Boeing 777’s transponder. Transponders emit electronic signals containing ...

Q. My household has four sticker transponders from the Transportation Corridor Agencies (TCA), and I’ve been thinking about also getting a switchable transponder to use on the 405 Express Lanes to ...