DMR Tier III covers trunking operation in frequency bands 66-960MHz. The Tier III standard specifies two-slot TDMA in 12.5kHz channels. Tier III supports voice and short messaging handling similar to MPT-1327 with built-in 128 character status messaging and short messaging with up to 288 bits of data in a variety of formats. It also supports packet data service in a variety of formats, including support for IPv4 and IPv6.

Why Use DMR Tier III?

Tier 3 is considered a direct replacement for MPT1327 Trunked radio systems. There are important features that make DMR Tier 3 an attractive proposition for your business.

The system is spectrally efficient, making best use of available frequencies saving money on licenses or doubling system capacity.