ADVANCED COMSAT SYSTEM DESIGN

Abstract

Current Domestic C-Band Satellite Systems in the United States all operate in a distribution mode, in that all information is transmitted to the entire satellite coverage area. These systems are optimum for television distribution and other information channels requiring simultaneous delivery to many receive terminals. For point-to-point communications current satellite systems provide very inefficient use of the spectrum/orbit resource. This paper recommends use of multiple beam C-Band satellites with frequency reuse in different geographic locations. This approach can provide more than ten times as much communications for each orbit slot. Compatibility with current systems is shown to limit satellite EIRP and G/T, so that the satellite required is relatively easy to implement.