简要介绍了链路设计的基本知识，并以青海便携应急卫星站为例，利用Satmaster软件对该站点的卫星链路进行计算，使之能够在卫星信号覆盖较差的偏远地区进行正常的卫星通信。

This paper briefly introduces the basic knowledge of link design, and it takes Qinghai portable emergency satellite station as an example to illustrate that--With the Satmaster software calculating the satellite link of the site, it enables normal satellite communications even in the remote areas where satellite signal coverage is poor.