An Experimental Broadcasting Satellite System Using the 12-GHz Band

An experimental broadcasting satellite system for community reception in Japan is described mainly from the broadcaster's point of view. A national study was initiated with the long-range view of (a) solving reception difficulties, a problem which NHK has to work out in such areas as mountains, remote islands and building-shadowed places; and (b) providing for more educational channels. A national-level study was initiated by taking a first step consisting of an experimental satellite to examine the technical feasibility and determine the most suitable system. For transmission of two color television channels, a 350-kg satellite will cover this island nation with a shaped-beam antenna with 58 dBW/ch maximum EIRP. This would allow the use of a 500 K-receiver input circuit, a 1.6-m antenna for the central service area and a 4.5-m antenna for the outer service area.

Print ISSN

0361-4573

Published

1975-03

Content type

Original Research

DOI

10.5594/J13389