地面移动通信系统是专为地面处于移动状态的用户设计的通信系统,它可以广泛地用于车辆调度、救护、救灾、消防、公安以及许多大型的企事业单位.由于指挥中心可以通过它与分布在广大地区的车上执勤人员保持联系,工作效率大大地提高,开支却下降了.地面移动通信系统还可与城市的有线电话系统联结成网,迅速、准确地传达各种信息,是人们在生产活动和日常生活中十分有用的工具.长期以来,地面移动通信系统只是用作通话的工具,到目前为止这仍然是它的主要功能.但是,随着数据处理技术的发展,对移动通信的要求也在起变化.例如,人们希望将打字机、传真机、绘图机等设备安装在车上,以便基地随时向车辆传送文字、图形、地图、照片等.如将计算机的终端也放在车内,操作人员在驱车 Ground Mobile Communication System is designed for mobile users on the ground designed communication system, which can be widely used in vehicle scheduling, ambulance, disaster relief, fire fighting, public security and many large enterprises.As the command center through it with the distribution In the vast area of ​​the vehicle on duty to keep in touch, work efficiency greatly improved, but the cost has dropped.Mobile terrestrial systems can also be combined with the city’s wired telephone system into a network, quickly and accurately convey a variety of information, people in Production activities and daily life.For a long time, ground mobile communication system is only used as a call tool, so far it is still its main function.However, with the development of data processing technology, the mobile communication For example, people want to typewriters, fax machines, plotters and other equipment installed in the car, so that the base of the vehicle at any time to send text, graphics, maps, photos, etc. If the computer terminal also placed in the car The operator is driving