Following are the personal radio services used by the general public that are covered in this encyclopedia. Personal radio services provide radio communications between two parties and have nothing to do with one-way AM, FM or HD Radio broadcasting.

A few years ago the staff at Aftersight, a nonprofit radio service based in Boulder, Colorado, got an angry call from a man whose child was trying to watch Barney on PBS Kids. “All we can hear is you guys reading the paper!” the man said. His child had ...