In 1969, the Radio Amateur Satellite Corporation (AMSAT) was created in order to foster ham radio enthusiasts' participation in space research and communication.
1969年，国际业余卫星组织（AMSAT）成立了，其目的是促进业余无线电爱好者参与并讨论太空研究。
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However, more recent modes of communication have included beaming our own radio waves into space attempting to make contact.
不过，包括传播我们自己的电磁波在内的现代通讯方式正在试图寻在接触点。
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Compared with Radiocommunication, Free Space Optical Communications (FSO) technology has flexible and anti-intercepted advantages.