随着广播电视数字化的发展，广播电视信号也基本上实现了数字化，广播电视微波传输也基本实现了数字化传输，原模拟干线微波和模拟移动微波传输设备已逐渐退出历史舞台。SDH同步数字传输技术在传输利用率和灵活性方面具有明显的优越性，微波干线与光缆干线互为备份，大大提高了传输可靠性，为广播电视节目信号的安全播出提供了重要的技术保障。2012年，随着我台广电中心的建成使用，全面实现了广电微波传输网络的数字化，节目传输质量和安全播出保障水平进一步提高。本文对我中心数字微波技术的运用进行了介绍，阐述了其在广播电视信号传输中的作用。%With the rapid development of digital broadcasting technology, microwave transmission has basically digitalized in radio and television industry, too. Synchronous digital transmission technologies have outstanding advantages in terms of transmission effi ciency and fl exibility. Microwave trunk lines and Cable trunk lines back up each other, thus, transmission reliability can be greatly increased, and safe broadcasting can be further guaranteed. In the year of 2012, Ningxia Radio & Television Station digitalized its whole microwave transmission network after the completion and operation of the new center. Based on that, the level of TV program signal transmission and safe broadcasting was further improved. This article generally analysis the application of digital microwave technology by Ningxia Radio & Television Station, especially in thefi eld of radio and TV signal transmission.
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