FM radio in the US certainly has less spectrum than TV did, but it has 20MHz of relatively low frequency spectrum which is quite useful: 88-108 MHz. It has exce

FM radio in the US certainly has less spectrum than TV did, but it has 20MHz of relatively low frequency spectrum which is quite useful: 88-108 MHz. It has excellent propagation characteristics (less power lost over distance compared to higher frequencies) and very good ability to penetrate through obstacles like trees and the walls of buildings, but still has an antenna size that's fairly manageable. For reference, 20 MHz is enough to carry ~3200 voice channels (6.25kHz spacing), or ~1600 data channels of ~10-60 kbps each (12.5kHz spacing).