HD Radio
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HD Radio is a trademark for in-band on-channel digital radio broadcast technology. HD radio generally simulcasts an existing analog radio station in digital format with less noise and with additional
An example of information displayed by an AM HD station locking.
HD Radio transmitter
Spectrum of a HD Radio station as shown by a RTL-SDR USB device. The usual bandwidth of a regular FM station is visible as the marker width in the top image.
HD‑1 signal on KOST 103.5 FM in a Volkswagen RCD‑510 receiver
Digital Audio Broadcasting
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Digital Audio Broadcasting is a digital radio standard for broadcasting digital audio radio services in many countries around the world, defined, supported, marketed and promoted by the WorldDAB organ
HD Radio
…under an experimental authorization, the other three under new rules adopted by the FCC in October 2020. The system sees little use elsewhere as the DAB standard predominates outside North America and has been in widespread use since the 1990s. This standard was meant to supersede other existing…
A Pure DAB receiver
Prototype DAB receiver (1993)
A Pioneer car DAB tuner from 1998. This box connects to its head unit on the car dashboard as well as an external aerial.
A modern large tabletop DAB receiver with colour screen