In recent years, my country has successfully developed a point-to-multipoint microwave communication system, in which the central station uses an omnidirectional antenna to transmit in all directions. Within 50 kilometers around, there can be multiple points where user stations are placed, and multiple telephone lines are divided from the user stations and connected to each user. Its overall capacity includes equipment with different capacities such as 100 lines, 500 lines and 1000 lines. Each user station can be assigned a dozen or dozens of telephone users, and when necessary, it can be extended to users hundreds of kilometers away through relay stations. This point-to-multipoint microwave communication system is also very suitable for users in urban suburbs, county towns to rural villages or coastal islands, and for scattered settlements, and is relatively economical.
