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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