Operating 24 hours a day on a longwave frequency of 179 kHz from Chase, Maryland, WGU-20's programming consisted of pre-recorded announcements and time checks.
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Afterwards, reception reports (some from as far away as Texas) were sent a special QSL card featuring Paul Revere on a horse, raising the alarm.
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Besides the Maryland site, candidate sites for distribution stations were Maynard, Massachusetts; Mount Joy, Pennsylvania; Gray, Maine; Morristown, Tennessee; Starke, Florida or Chiefland, Florida; Mazomanie, Wisconsin; Carthage, Texas, Marshal, Texas or Seagoville, Texas; Alcova, Wyoming or Riverton, Wyoming; Mendota, California or Selma, California; Winslow, Arizona; Hermiston, Oregon; and Wallula, Washington.
In 2010, the first state-established school, WGU Indiana, was founded by Mitch Daniels, governor of Indiana, and the school reached 20,000 students for the first time.