Sirius FM-4 broadcasting satellite donated to the Smithsonian

fm-4-satellite-4379h[1]

One of the first satellites to provide space-based digital radio service to consumers in the United States and Canada was donated on Oct. 18, 2012 by SiriusXM Radio and Space Systems/Loral to the Smithsonian’s National Air and Space Museum. The Sirius FM-4 broadcasting satellite was built as a flight-ready back-up for a constellation of three satellites developed by SiriusXM and manufactured by Space Systems/Loral.