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随着时代的发展和科学技术的进步,半导体技术日趋成熟和完善,市面上的场效应管逐渐取代了大功率的电子管。其中,全固态的电视发射机因其高效率、低成本、稳定可靠等优点在发射机应用方面占据了很大的份额。本文分析介绍了高山转播台的大功率电视发射机运营特点以及我台使用的UHF10KW电视发射机的工作原理,对有关UHF10KW电视发射机的日常维护提出一些看法。
With the development of the times and the progress of science and technology, the semiconductor technology is maturing and perfecting day by day. The FETs in the market gradually replace the high-power tubes. Among them, the all solid state television transmitter because of its high efficiency, low cost, stable and reliable advantages in transmitter applications occupy a large share. This article analyzes the operation characteristics of high-power TV transmitter of Alpine relay station and the working principle of UHF10KW TV transmitter used by our station, and puts forward some opinions on the routine maintenance of UHF10KW TV transmitter.