C-band satellite transmission is the established standard for the delivery of cable TV programming to cable headends. The basic 24 transponder design is used by every cablenet satellite, greatly simplifying ground equipment design and minimizing investment cost. The current generation of cable satellites, including Galaxy I and III, Satcom 3R and 4, will exhaust its fuel supply during the 1992 to 1995 time frame; therefore, a new generation of C-band satellites will be launched as replacements. The technology to be incorporated into the replacements will add capability but will not cause the existing c-band ground infrastructure of antennas and receivers to be obsolete. The features that we foresee for the replacements include higher power, longer life, improved reliability and interference protection.