Development of the Defense Satellite Communications System - Phase II
Abstract
The paper deals with the design and construction features of the DSCS-II communications satellites which will remain operational until the mid-1980's when DSCS III is planned to be phased in. In the current orbiting configuration, using 20-W traveling wave tube amplifiers, the effective radiated power (ERP) at the edge of the earth coverage beam is +28 dBw or 630 watts. This increases by up to 4 dB as the beam peaks at the antenna axis. The gains of the more directional area coverage (6.4 deg) and narrow coverage (2.5 deg) antennas are higher and so are the corresponding ERP's at +31 dBw (1260 watts) and +43 dBw (20 kW), respectively. Both antennas are mounted and gimballed, enabling them to be pointed toward ground stations anywhere on the visible portion of the earth.
- Publication:
-
EASCON 1978; Electronics and Aerospace Systems Convention
- Pub Date:
- 1978
- Bibcode:
- 1978ieee.conf..458K
- Keywords:
-
- Defense Communications Satellite System;
- Microwave Antennas;
- Microwave Transmission;
- Satellite Design;
- Transponders;
- Traveling Wave Amplifiers;
- Communication Networks;
- Communication Satellites;
- Ground Stations;
- Technological Forecasting;
- Titan;
- Launch Vehicles and Space Vehicles