What are some interesting scanner tricks?

Some interesting uses of radio scanners include things such as listening to satellites orbiting the Earth and dismantling the scanner to use its transmitter module as an impromptu remote audio capture device. AngelFire.com lists a number of interesting scanner tricks such as using it as a TV rotary antenna.

One trick that can be used on a radio scanner to provide many new scanning opportunities to its operator is to attach an amplifier to the scanner. Radio scanners can also be used to tune into a number of frequencies unknown to most users, such as 1090 MHz AM, which transmits the signals of incoming aircraft.