Heck, I'm sure it's been longer than a decade. Previous generations of mobile phones used FM unencrypted. You could eavesdrop on them with just a television t

Heck, I'm sure it's been longer than a decade. Previous generations of mobile phones used FM unencrypted. You could eavesdrop on them with just a television that has a UHF dial on channels 70 to 83! (Audio carrier 811-889 MHz)