Digital radio can be divided into several categories: DPMR, DMR, TETRA
 

From a cost and use of customer-oriented, digital radio can be divided into several categories: DPMR, DMR, TETRA

DPMR: the lowest cost, widely used in the next and amateur users, hotels and tourism and catering scene.

DMR: relatively high cost for industrial users, such as mining, forestry, security, and so on.

TETRA: The maximum cost for high security demanding applications, such as military, police and so on.

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