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Motorola MOTOTRBO radios are expensive and for many cost prohibitive for ham radio operators. However, there other manufacturers introducing DMR units for amateur radio and the cost is considerably less than DStar. Hytera and Vertex produce compatible radios. Motorola MOTOTRBO radios are expensive and for many cost prohibitive for ham radio operators. However, there other manufacturers introducing DMR units for amateur radio and the cost is considerably less than DStar. Hytera and Vertex produce compatible radios. These are commercial radios that can be adapted for ham use, which is not as flexible as radios designed for ham operators.