从双通道四频道改成单通道二频道电视发射机的探讨  

The study on the TV launching machine from twin-passages and four frequency channels to one passage and two frequency channels

作　　者：李玉[1] 

机构地区：[1]承德市广播电视局,河北承德067000

出　　处：《河北省科学院学报》2007年第2期47-49,共3页Journal of The Hebei Academy of Sciences

摘　　要：通过实例论述了从1kw双通道四频道改成单通道二频道发射机的方案、改机调试及试机的整个过程,其测试结果达到了预期效果,满足现有工作的需要。为开源节流、废物利用提供了一个很好的例证,为今后的技术改革实践积累了相关的经验。The whole process of the TV launching machine is given that includes the plan, the repackaging machine, debugging and the testing from twin-passages and four frequency channels to one passage and two frequency channels. The result achieves the goal. It is satisfied with the existing work requirement. A good example is provided for the increasing income and decreasing expenditure and using waste material. The experience is accumulated for the future.

关 键 词：通道 频道 电视发射机 

分 类 号：TN941[电子电信—信号与信息处理]