Digital Mobile Radio

Digital Mobile Radio [DMR] is a sector of the UK amateur radio digital voice scene using technology originally destined for the commercial market. Initially, only expensive big brand portable and mobile transceivers were available and these also required dedicated specialised commercial software to program. However, there are now many much cheaper devices specifically aimed at the amateur market available from the likes of TYT, Retevis & Radioddity etc. Initially, single-band, there are now many dual-band versions also available. The current network is dominated by 70cm UHF repeaters with more VHF ones coming on-line. 

There are a number of DMR repeater networks in the UK. As well as the Phoenix UK Network and BrandMeister UK networks there are also repeaters that operate in stand-alone mode and others that have regional connectivity such as the South West Cluster, the Salop network and the Northern DMR Cluster. There is also inter-connectivity with DMR+, Fusion, AllStar and DSTAR networks making for a complex but expanding world of QSO possibilities. 

Functionality and coverage are constantly growing as is the ability to build a low-cost homebrew repeater, or personal hotspot, running the MMDVM software by Jonathon Naylor G4KLX.

Dongles and shields for the Raspberry Pi, PC and Arduino are also able to connect into the DMR, DSTAR, Fusion, P25 and NXDN networks. This connectivity is currently available on various platforms including  BrandMeister with UK Phoenix access being provided via the DMR+ network.  For more details on each of these networks take a look at the DMR links page. 

To use any aspects of the network you will require an ID which is unique to you and is only available to licensed radio amateurs.

The repeater network is expensive to install and maintain with ongoing costs so I would encourage all users to support their local groups. For a list of groups in East Anglia have a look here: – East Anglia Repeater Groups

Last updated 7th December 2018