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Program Associated Data (PAD)/Program Service Data (PSD) is: the: data displayed on many HD Radio and satellite radio 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."

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 (RDS) which is only used on analog stations.

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