In October, Wisconsin Public Radio and the state agency that manages stations that carry WPR programming announced they were reducing their use of HD Radio.
They posted an announcement explaining the decision. They noted that their use of HD Radio dated to 2007 and that WPR and the Wisconsin Educational Communications Board had installed 13 HD Radio transmitters carrying existing WPR content that also allowed WPR to broadcast its All Classical network on HD2 multicasts.
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https://www.radioworld.com/tech-and-gear/digital-radio/why-wpr-cut-back-on-hd-radio
They posted an announcement explaining the decision. They noted that their use of HD Radio dated to 2007 and that WPR and the Wisconsin Educational Communications Board had installed 13 HD Radio transmitters carrying existing WPR content that also allowed WPR to broadcast its All Classical network on HD2 multicasts.
[...]
https://www.radioworld.com/tech-and-gear/digital-radio/why-wpr-cut-back-on-hd-radio