Well ask a silly question. DAB is not available in the US, we apparently use IBOC?
RECEIVING DAB WITH A RASPBERRY PI 3 AND RTL-SDR
https://www.rtl-sdr.com/receiving-dab-with-a-raspberry-pi-and-rtl-sdr/
Over on his blog Michael Carden has produced a tutorial showing us how to use SDR-J on the Raspberry Pi 3 for receiving Digital Audio Broadcast (DAB) radio. DAB is a type of digital broadcast radio used in several countries outside of the USA for general broadcast radio programs. It usually provides clearer digital audio compared to FM broadcast.