I think maybe they didn't try hard enough LOL. If you broadcast on the radio frequency the pilot is speaking on, you can jam their transmission. If you broadc

I think maybe they didn't try hard enough LOL. If you broadcast on the radio frequency the pilot is speaking on, you can jam their transmission. If you broadcast on, say, the instrument landing frequency (ILS) frequency, the ILS needle the pilot is looking at will stay centered, no matter how much he deviates from the approach path. The pilot would undoubtedly realize something was amiss, switch comm frequencies, use GPS etc. But it could cause some distraction and wreak some havoc. Back in the 90s, there were cheap CD players and whatnot that would generate all kinds of crazy RF. The FAA said, this is all unapproved electronics, we can't test it, it has to go off during takeoff and landing, unless the pilot OKs it. Of course, the corporate pilot will OK it for his CEO/passenger.