"Public radio" refers to radio stations and programs that are publicly funded and are set up to serve the general public. These stations typically offer a wide range of informative and educational content that is free from commercial advertising.
Here's something you don't witness very often... German national public radio telling listeners that natural factors are behind observed changes in something related to climate. (climatechangedispatch.com)
We also produce an annual season of radio documentaries that air on public radio stations nationwide. (apmreports.org)