3 ms·

What's surprising is HD doesn't mean high definition. It doesn't mean anything they just named it HD Radio

• hunter2_ 3y ago
  Hybrid digital, which I believe refers to having both analog and digital over a single carrier.
  • argilo 3y ago
    I've heard that term as well, but the official site denies it: https://hdradio.com/trademark/ https://hdradio.com/trademark/