TETRA digital trunked system which is one of the two digital trunked standards recommended by China, has been widely used in dispatching systems such as public security, safety, army, traffic etc.

• TETRA数字集群作为我国推荐使用的两种数字集群标准之一,广泛应用于公安、安全、部队、交通等指挥调度系统。