The Department of Commerce National Telecommunications and Information Administration (NTIA) identified the Commerce Spectrum Advisory Committee (CSMAC) as the primary forum to facilitate technical discussions between industry and federal agencies regarding repurposing spectrum for commercial use. CSMAC Working Group 3(WG3) is focused on sharing of the 1755-1850 MHz band between federal satellite operations (SATOPS), DOD electronic warfare and commercial mobile wireless (MW) broadband. CSMAC WG3 and the DOD Chief Information Officer requested that The Aerospace Corporation provide a characterization of government satellite operations at specific ground stations with the potential to impact MW operations in the future. The report provides estimates of the areas potentially impacted by government usage of ground to satellite links from the AFSCN and other government sites and assesses the feasibility of government and commercial sharing of the 1755-1850 MHz band. The analysis involves an assessment of radio emissions and their effect upon terrestrial mobile wireless providers within the vicinity of government ground sites that are potentially subject to interference. The analysis provides contour maps of the various power levels for differing scenarios at these locations.