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All posts in DMR

Analogue Scrambling

To better support legacy analogue systems, MOTOTRBO radios are able to support simple Frequency Inversion Analogue Scrambling. During the 1990s a number of vendors produced (plugin or solder-in) option boards for a number of makes of radios. Some of these vendors no longer exist or do not produce option boards . . . Read more

MOTOTRBO and IP

  For non-IT folk, the way to think about a MOTOTRBO system (any system, except maybe Connect Plus), is think about it as a computer network: the radios are end points and the repeaters are routers and, in some cases, end-points. MOTOTRBO radios send and receive voice (and data) using IP. A MOTOTRBO radio has an . . . Read more

What is MotoTRBO?

Outside Motorola MOTOTRBO is known as DMR. DMR is an acronym for Digital Mobile Radio and is an ETSI standard for land mobile radio communications in the 66-960MHz band. The standard defines a two-slot TDMA channel access method thus allowing two simultaneous voice or data calls on a 12,5kHz radio . . . Read more

Eight myths about DMR (MOTOTRBO).

DMR is not compatible with analogue. Simply not true, Motorola has a number of solutions which allow analogue and MOTOTRBO radio to interoperate and, in some cases, use the same system. MOTOTRBO radios have the ability to scan an analogue and digital channel for activity – this ensures the radio . . . Read more