MMDS (Multichannel Microwave Disribution system) was trialled in United States and some Latin America at the beginning of 80,then the multi-channel television and microwave transmission technology get rapid development.China introduced MMES at in the early 1990s, quickly attracted wide attention in China.Now many large and medium-sized cities that have cable television set MMDS System introduced from abroad. Linear high power microwave transmitters, or directed through the entire broadband antenna to be launched to the forefront of the multi-channel television CATV signal distribution to the forefront son or television subscribers.It can be a substitute for optical fiber and cable, the local cable television station in an effective way for regional networking.Modular Design of the equipment used can be very convenient for the expansion and upgrading, and it could send up to 23 television channels.Direct transmission distance of up to 70Km above all, highly functional.Cable is the ideal wireless transmission equipment,which are particularly suited to county.Cable network and the extension of the township's cable television network.
A multi-channel microwave distribution system is MMDS, withing open wireless transmission characteristics,also the cable network can transmit multiple TV programs.Therefore, it was called MMDS wireless cable transmission networks.
Multi-channel television MMDS microwave transmission distribution system shown in figure.
Multi-channel television microwave transmission distribution system
