A digital MMDS system based in Gulang, Gansu province, People’s Republic of China, has been recently installed using Cable AML outdoor broadband transmitters and repeaters. The systems marks the first extensive use of outdoor MMDS transmitters and repeaters in a digital MMDS system.

The system, designed and installed by GS Enterprises, has a total reach of 100 Kms. A 4 Km fiber link connects the digital headend to the main transmitter, which is an outdoor 100-Watt unit providing service to an area of more than 50 Kms radius.

At 45 Kms from the main transmitter, an in-band point-to-point repeater link, implemented with an outdoor transmitter, trans-ports the signals from Heichong to Qingshansi, 20 Kms away. In the final leg of the system, an outdoor 50-Watt repeater is used to provide service to customers in an area of more than 35 Kms radius.

Cable AML’s technology has made it possible to implement digital MMDS systems at a fraction of the cost of channelized analog systems installed only a few years ago.