论文部分内容阅读
南极北京是我国目前最长的短波通信线路之一。三年多来,南极北京反复进行了单边带连续试验,取得了较好的效果。本文介绍1985年以来南极、北京短波通信的基本情况,总结了以下三个方面的通信体会:1.电波传播条件及时段选择;2.频段选择与通话信号质量;3.改善南极、北京短波通信的设想。
Antarctica is one of the longest short-wave communication lines in our country. Over the past three years, Antarctic Beijing has repeatedly carried out a series of continuous tests with single sidebands and achieved good results. This article describes the basic situation of the Antarctic and Beijing short-wave communications since 1985 and summarizes the following three aspects of communication experience: 1. Radio propagation conditions and time-slot selection; 2. Frequency band selection and call signal quality; 3. To improve the Antarctic, Beijing Shortwave Communications The idea.