ADVANCED SATCOM: RCA's NEXT-GENERATION DOMESTIC SATELLITE SYSTEM.

The rapid increase in channel demands on RCA Americom communication satellite brought the second generation design with larger traffic capacity. System profitability studies show that this expanded domestic network should remain at C-band (6/4 GHz), with traffic capacity per satellite increased by a combination of higher EIRP, improved filter characteristics, and more advanced terrestrial equipment. Increased propellant capacity, additional component redundancy, and greater power system capability will extend the satellite's life and reliability. Earth station improvements to complement these spacecraft features and to thereby double the per-transponder channel capacity include modifications to the RF stages of the terrestrial facilities and development of more efficient modulation techniques. The resultant lower annual cost per channel will allow Americom to offer new services as well as to expand the present customer base.