University of Kansas
3
Satellite Data Communication
�Commercial Satellite systems
�No coverage or intermittent coverage
�Prohibitively expensive ($3 - $30 per MB)
�Special Purpose Satellite systems
��ATS3, LES9, GOES, TDRS 1,and MARISAT2
�Broadband Access
�Geo-synchronous : Limited visibility (10-13 hrs/day)
�Low elevation angles : extremely large ground terminals
Inmarsat
Globalstar