广播电视卫星地球站专业技术设备系统配置中值得探讨的几个问题

Several Worthwhile Exploring Issues About Configuration of Technical Equipment Systems in Satellite Earth Station

通过对广播电视卫星地球站专业技术设备系统配置中信号源引接系统的选择方式问题、调制器输入端口的使用和中频切换开关的使用问题、上变频器的连接方式及射频切换开关的使用问题、主备两套系统与主备两面上行天线的连接使用问题、接收系统低噪声放大器(LNA)和低噪声变频器(LNB)的连接使用问题进行讨论,制定了一套功能完善、稳定可靠、有冗余性的高清晰度卫星电视上行传输系统。

Based on exploring the five issues, which are option of signal delivering system, use of modulator input and use of IF switch, connection of up converter and use of RF switch, connection of two set of systems and up-link antenna, connection of receiving system of LNA and LNB, the paper makes a set system of HDTV up-link transmission, the system is functional, stable and redundancy.