I thought HP had some kind of audio made by the same company that provides UA with ATC. But, TAA_Airbus..There was a huge discussion on this in the Tech/Ops forum like 2 weeks ago. Don't lie. You didn't pick up jack with your receiver/scanner. It doesn't work in an airplane. An airplane is a big metal tube with a lot of wires. It would be impossible to hear anything. There would be interference and static. I have tried myself even though it is not safe because of intererence and in most cases not allowed on airlines.