论文部分内容阅读
彩色电视的引进,对发射网和发射机的性能提出了严格要求,而同时正在稳步地实现全国分米波双通道覆盖,这就需要大大增加发射台的数目。采用先进技术,使发射机的运行可无人值班[1,2],提高可靠性,同时明显地减少设备和维护费用。本文只述及无人值班运行的电视发射机的自动监测,并概略地描述一下为监测和控制发射机和发射网的其它关键部位而研制的设备。与监测相关的是适当的数据的传输,因此也讲一下为此目的而研制出的各种数据传输系统。
The introduction of color television sets stringent requirements on the performance of transmission networks and transmitters while at the same time steadily achieving dual-channel coverage of the national decimeter, which requires a substantial increase in the number of transmitting stations. The use of advanced technology allows the operation of the transmitter unattended [1,2], improve reliability, while significantly reducing equipment and maintenance costs. This article only covers automatic monitoring of unmanned television transmitters and a brief description of the equipment developed to monitor and control other key locations of transmitters and transmitters. Related to monitoring is the transmission of appropriate data, so we will also talk about various data transmission systems developed for this purpose.