drunkenbeagle
Gang Member
I have mode S, but not the type that sends that. More curious who can receive it in the US nowIt's part of the Mode S transponder
http://nbaa.org/ops/cns/mode-s/
http://www.eurocontrol.int/articles/eurocontrol-documents-ssr-mode-s
Basically any Airbus delivered today complies. I don't think the equipment here in the US can read it. Don't know about Boeings, but I imagine if the Boeings in Europe have to be compliant, then Boeing probably sells the equipment to make them compliant, it will depend on whether the airline that's buying wants to have the option installed I guess.