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近年来。南京水利水文自动化研究所承担的多路无线电通信系统任务中,都运用了价格便宜,稳定可靠,使用灵活的三路无线电通信机.水利部门中所用的无线电通信系统,一般都在偏僻处建站,又因防汛调度的需要,势必要求通信系统具有高度的稳定性和可靠性。因此,在一些主要通信干线中,常常采用双机交替工作。这样,既保证了通信的可靠,又延长了机器的使用寿命。远距离的通信,往往设有中继站,且一般无人值守。在实际的通信系统中必须具有自动切换装置,否则是不能保证通信系统高
In recent years. Nanjing Institute of Water Conservancy and Hydraulics multi-channel radio communications system undertaken by the task, the use of cheap, stable and reliable, flexible use of three radio.Water used in the water sector radio communications systems are generally located in remote areas, Due to the need of flood control and dispatching, communication systems are bound to require a high degree of stability and reliability. Therefore, in some of the major communications trunk, often alternating between two machines. In this way, not only ensures the reliable communication but also prolongs the service life of the machine. Long-distance communications, often with relay stations, and generally unattended. In the actual communication system must have an automatic switching device, otherwise it can not guarantee the high communication system