杨凌是全国唯一的农科城。我们杨凌区广播电视局现有职工24名,调频广播电台一座,1993年建起300兆邻频有线电视系统。去年,又建起杨凌电视差转台,覆盖半径20多公里,深受当地群众欢迎。 去年6月初,我们着手考虑有线电视台的全面改造问题。最终确定新建750兆邻频传输的光电缆混合网有线电视系统。在这项工作中,我们的主要 Yangling is the only agricultural city in China. We Yangling District Radio and Television Bureau existing staff 24, a FM radio station, in 1993 built 300 trillion adjacent cable television system. Last year, Yangling TV set up another turnaround, covering a radius of more than 20 kilometers, welcomed by the local people. In early June last year, we started to consider the issue of the comprehensive reconstruction of cable television stations. Finalized the new 750 megahertz transmission optical cable hybrid network cable television system. In this work, our main