MMDS is the shortened form of Multi-channel Microwave Distribution System. As an important means to build CATV network, MMDS is characterized by less investment., faster building.. higher reliability and wider coverage area, so it springs like mushrooms worldwide. In such situation, MMDS can not get the expected effect without scientific system programming.In this paper, system programming of MMDS and signal relay will be discussed, and effective methods will be brought forward to resolve the problem of the interfere of the same .frequency which disturbs MMDS, in the last part there will be a discussion about the optimization design of the core of MMDS the transmission system. |