Modify an ordinary analog AM/FM radio to eavesdrop on air traffic control communications. All you need is a screwdriver -- can't be easier than that!
The FM radio band (88-108 MHz) lies just below the Civil Aviation Band (108-138 MHz), which is used for air traffic control, air shows, and other ground-to-air communications. This means that it’s easy to modify an ordinary analog AM/FM radio to receive these transmissions.
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