2e

Used by the Mobilesat communications service to cover main
land Australia. Based on the Hughes HS-601 satellite, the
company's first 3-axis design, accommodating three bands
simultaneously for high power services such as land mobile, large
area DBS (Direct Broadcast Service) and HDTV (High
Definition Television).

http://samadhi.jpl.nasa.gov/msl/QuickLooks/optusQL.html