Program Associated Data (PAD) or Program Service Data (PSD) is the data displayed on many

HD Radio HD Radio (HDR) is a trademark for in-band on-channel (IBOC) digital radio broadcast technology. HD radio generally simulcast, simulcasts an existing analog radio station in digital format with less noise and with additional text information. HD R ...

and

satellite radio Satellite radio is defined by the International Telecommunication Union (ITU)'s ITU Radio Regulations (RR) as a '' broadcasting-satellite service''. The satellite's signals are broadcast nationwide, across a much wider geographical area than te ...

receivers. It can describe the program being transmitted and other information such as the name of the song, the artist and the genre of music. Using a feature known as “SlideShow”, it can also transport images that are displayed synchronized with the audio channel. The HD radio and satellite systems provides a data path for this programming data to be delivered and read by the listener in near real time. HD radio and satellite radio receivers provide PAD decoders and visual screens for displaying the information. PAD is different from

Radio Data System Radio Data System (RDS) is a communications protocol standard for embedding small amounts of digital information in conventional FM broadcasting, FM radio broadcasts. RDS standardizes several types of information transmitted, including time, sta ...

(RDS) which is only used on analog stations.

References

Broadcast engineering Radio technology {{radio-stub