今年1月23日日本成功地发射了第一颗运营的BS—2号广播卫星。事实上,这是世界上第一颗直接广播卫星。直接广播卫星与普通广播卫星基本不同的是,它将电视节目直接发送到电视用户。日本本土电视用户只要备有盘形天线和与其配套的转换器及调谐器,即可直接收看从卫星上发送的节目,而不再需要通过电视发射台接受发射讯号。 On January 23 this year, Japan successfully launched its first broadcasting BS-2 broadcasting satellite. In fact, this is the world’s first direct broadcast satellite. The basic difference between direct broadcast satellite and ordinary broadcast satellite is that it sends television programs directly to television users. Japanese domestic TV users, provided with a dish antenna and its accompanying converter and tuner, can watch programs transmitted directly from satellites and no longer need to receive the transmitted signal through a television transmitter.