Detailed text transcripts for TV channel - FOXNEWS - 20140317:04:16:00
On-off switch. it is not just position it's altitude and the traffic collision aborting system. there's three incredibly important functions. if you are halfway over the atlantic or the south china sea where there's no primary coverage. >> what you are saying if a transponder is turned off there's no way to specifically identify this plane or the altitude of this plane. >> absolutely spot on. you can see the four digits here that provide the aircraft with a unique identification code. >> when those four digits are not there? >> those four digits disappear from the radar screen as to the altitu...