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After watching a Defcon talk about the idea that transponders self-indicate their position without signature, so it would be possible to clutter ATC and make th
by alexis_fr 8y ago
After watching a Defcon talk about the idea that transponders self-indicate their position without signature, so it would be possible to clutter ATC and make the panic, I was under the impression that rogue transponders couldn’t safely be dismissed, just in case it were actually the 747 it claims to be.
- fnordfnordfnord 8y ago>After watching a Defcon talk about the idea that transponders self-indicate their position without signature Older style (I forget the proper name) transponders don't indicate their position, only ID and altitude. Newer ADS-B transponders include GPS position. It's an interesting point though. Assuming for a moment that a bunch of drone operators equipped their drones with ADS-B transponders, I speculate that there could be a chance of overwhelming an airport approach radar's ability to track targets. Could potentially overwhelm the electronics, or the operators.
- sokoloff 8y agoWhile we’re still using secondary radar (which gets an azimuth and range return from the radar site), it’s trivial to ID fake ADS-B outputs. I don’t know if they have filtering in place now or not. The effective bandwidth of ADS-B is limited as well, serving as an effective cap on number of targets created. Do that and keep doing it, and it would not be hard to find your transmitter.