HD Radio HD Radio is one of the most significant advancement in radio broadcasting in over 50 years. It boost a dramatically, higher quality of audio, far more programming choice and compelling new wireless data services that are provided by both your local AM and FM stations. As with regular AM and FM stations, there can be constant static, hiss, pops or even fades while listening to your favorite song, with Hd radio broadcasting, you will enjoy uninterrupted crisp, clear music at your pleasure.