HD Radio®

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

HD Radio® is a subscription-free service.

HD Radio® technology allows an AM or FM radio station to duplicate their traditional analog channel with a matching digital channel. Some FM radio stations subdivide the digital output signal into multiple channels that are not duplicates of the analog channel. These extra multicast channels vary in availability and are called HD2, HD3 and HD4 channels.

The AM/FM antenna receives radio waves containing data (station call letters, artist names, song titles, etc.) and digital HD Radio® audio. The radio waves are sent through the AM/FM antenna coaxial cable to the HD Radio® receiver built into the ACM. The data is separated from the audio. The data is sent to be displayed on the centerstack infotainment display, and the audio is converted into fluctuating AC voltage and sent as left and right analog audio signals to the to the speakers and subwoofer amplifier. The subwoofer amplifier processes the audio signals and sends them to the subwoofer speaker as fluctuating AC voltage.