本文图片上那两只大耳朵似的锅面天线,正遥对着南天印度洋赤道上空三万六千公里高的国际通信卫星,捕捉着它传来的信息,这就是我国新建成的内蒙古呼和浩特卫星通信地面站。卫星通信,就是利用人造卫星进行通信。其通信系统是由天上的通信卫星和地面的卫星通信站组成。通信卫星,是用多级火箭发射到围绕地球运转的大约三万六千公里高的轨道上去的。它的主要任务是转送两个固定地面站的通信信息,因此就要求它必须对地球相对静止,好像 The two big-ear pot-shaped antennas on the picture in this article are just facing the 36,000-kilometer-high International Telecommunications Satellite over the equator of the South Indian Ocean and capturing the message from it. This is the new satellite of Hohhot, Inner Mongolia Communication ground station. Satellite communications, is the use of satellite communications. Its communication system is composed of the heavenly communications satellite and the ground satellite communications station. Communications satellites are launched using multi-stage rockets to approximately 36,000 kilometers of orbits that run around the Earth. Its main task is to relay the communication of two fixed ground stations, thus requiring that it must be relatively static to the Earth as if