Software Defined Radio
The CCI has a small number of Adafruit RTL-SDR software defined radios. These can be used to tune into AM and FM radio bands (like a normal radio), but also to decode other kinds of data sent over radio.
If you're a mac user, Adafruit has a useful guide to using CubicSDR (they also have one for windows users on SharpSDR which we haven't tested but also works). We recommend having a go getting the SDR set up with this first!