23 Sep 2019
GB7BA Joins the Cluster! We're please to announce that GB7BA has joined the NDC.

4 Jul 2018
GB7MR Switch On, I’m pleased to announce that at 18.26 Wednesday 4.7.18 GB7MR has been switch on at its new location thanks to Rochdale and District Amateur Radio Society (RADARS). The repeater is now sponsored by the above and would not have been back on otherwise. Reports are welcome with location and difference from old site to new please.

21 Jun 2017
Due to internet provider issues, the network is down, all working to restore service ASAP.

14 Oct 2016
Due to internet issues, GB7HX, TD and LE are off the network until Saturday.

19 Aug 2016
After a request, and discussion with the keepers concerned, slot 2 - TG9 local on both GB7EL and GB7RV repeaters have been linked. This will hopefully get a little more traffic flowing.

Aug 2016
GB7RV joins the cluster.

6 Aug 2016
CORRECTED All OK - There seems to be an issue with GB7EL not connecting to the network at present, so local QSO's only. It's due a firmware upgrade, and so this will be done, and the network issue investigated asap. Sorry for the inconvenience.

Jul 2016
Advance warning. We have been advised by the hosting company that they have planned a power upgrade on Thursday 14th evening at 19:00. The system is UPS backed, but if the outage lasts too long, it could see the bridge servers shutdown. All repeaters will continue to operate in standalone mode when the bridge is unavailable, and will reconnect automatically once back.

Jul 2016
GB7EL joins the cluster.

Jun 2016
We link to the OpenDMR hub, allowing access to the MARC talkgroups.

May 2016
GB7HS, GB7HX, GB7TD, GB7MR and GB7LE move over from BrandMeister UK onto the Northern DMR bridge.

April 2016
System goes into testing with a number of MotoTRBO repeaters.

March 2016
A decision is made to develop our own DMR repeater bridge.


Amp The Northern DMR Cluster is, a DMR bridge network in the UK. At present we host the GB7HS, GB7TD, GB7MR, GB7LE, GB7EL and GB7RV repeaters, others are in discussion to join which could expand the coverage. Our main aim is to supply a stable, fuss-free, DMR server access that is based more-or-less on the original DMR-MARC concept. It does NOT therefore have reflectors, DVMINI/Mega access - although they can be spoken too via the link from OpenDMR to DMR+ (see talkgroup page for info).

Image Please note that both this website, and the DMR repeater network itself are works in progress! We are Amateurs providing a service to other Amateurs, the repeater bridge is a ground up software development of the IPSC protocol, and we do not use any commercial or closed source solutions. Please bear with us, We're getting there!

Wider net connections

Image The cluster is connected to the OpenDMR hub, giving accessing the MARC talkgroups. We peer into the network at the same level as the Phoenix DMR system, allowing users to speak to others around the world.


Image None of this would have be possible without the help and support of many others, NWT for server provisioning and hosting, Cort Buffington and the team at K0USY, for the pioneering work on reverse engineering the MotoTRBO IPSC protocol and turning it to an open source reality. EL for believing we could do it, and supplying access to test Moto repeaters. Michael for recognising something in what we are doing, and bringing his repeaters across. Rudy and Artem at BrandMeister for advice, support and a network link for testing wider routing. A hearty thank you to OpenDMR for seeing the benefit to all Amateurs and peering the networks to allow more people to chat!

  • Title: DMRlink
  • Author: K0USY Group
  • Licence: CC BY-SA 3.0