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SCPC是八十年代引进并国产化的卫星通信设备,由于其数字终端主要用模拟电路设计和制作,电路比较复杂,正常开通时对各部分的工作状态要求较严,同时有些部件的指标和可靠性不够理想,因此使用中故障率较高,维修困难。如何在现有条件下对SCPC设备进行正确的使用和维护,以保障设备尽可能高的完好率是同行工程技术人员关心的问题。本刊从本期起开辟SCPC设备使用维护系列讲座栏目,侧重介绍SCPC设备的维修原理和经验,主要内容有系统电平调整、各主要单元的调测、改善设备工作状态的方法等。此外对维护该设备的常用仪器的基本原理和使用方法也拟作简单介绍。
SCPC is the introduction and localization of satellite communication equipment in the 1980s. Due to its digital terminal is mainly designed and manufactured with analog circuits, the circuit is more complicated. When it is normally opened, the working conditions of each part are more stringent. At the same time, the index and reliability of some components Sex is not ideal, so use a higher failure rate, maintenance difficulties. How to properly use and maintain the SCPC equipment under the existing conditions is the concern of engineering and technical personnel in the same field in order to ensure the best possible equipment integrity. This issue from the start of SCPC equipment maintenance series lecture columns, focusing on the introduction of SCPC equipment maintenance principles and experience, the main contents of the system level adjustment, the main unit of the commissioning, to improve the working conditions of the equipment. In addition to the maintenance of the equipment, the basic principle of the instrument and the use of methods also intended to make a brief introduction.