Digital mobile radio (DMR) is a limited open digital mobile radio standard defined in the European Telecommunications Standards Institute (ETSI) Standard TS 102 361 parts 1–4 and used in commercial products around the world.
Retevis DMR radio with high power, long calling distance, digital and analog mode switchable radio is compatible with Mototrbo Tier 1 and 2, can bring you a clear and safe call, and it is also a choice for amateur and experienced hams. Retevis RT3S is the best choice for radio amateur to get started, Ailunce HD1 is HAM’s favorite.