Some documents linked from this page may require Adobe Acrobat PDF reader.
British Columbia Frequency Modulation Communications Association
BCFMCA DMR / MotoTRBO System
The BCFMCA is proud to be able to offer the latest and greatest digital technology to amateur radio, welcome DMR / MotoTRBO.
What is DMR / MotoTRBO?
DMR stands for Digital Mobile Radio. DMR is an open source digital radio system that is primarily used by the land mobile radio (LMR) industry. Motorola has marketed their implementation of DMR under the name MotoTRBO.
DMR uses Time Division Multiple Access (TDMA) to accommodate two simultaneous data/voice streams on a single 12.5KHz channel. In other words, two groups of users are able to carry out separate conversations on a single, traditional pair of repeater frequencies. It is also possible for users to communicate on multiple talkgroups similar to trunked radio systems.
Repeater linking is also possible through Motorola's implementation of IP Site Connect (IPSC). Wherein users on one repeater in one location can communicate to another group of users in a completely different geographical location. This is accomplished via IP and the Internet.
More information on the DMR standard can be found here on the Digital Mobile Radio Association website.
In order to use a DMR / MotoTRBO repeater you will need a radio that supports the DMR standard. This radio needs to be configured with a unique radio ID (RID), repeater transmit/receive frequencies, repeater color code, time slot and talkgroup ID's.
An effort has been made to coordinate all amateur radio unique radio and repeater ID's. The DMR world wide amateur radio database and ID request form can be found here; The DMR World Wide Amateur Radio Database
DMR / MotoTRBO mobile and portable radios support the following features:
The BCFMCA DMR / MotoTRBO repeater
The BCFMCA has a DMR / MotoTRBO repeater on the air. The repeater is located at our Mt Seymour site.
The repeater is connected to the internet via the DCI and DMR-MARC networks. This connection allows users of the BCFMCA DMR / MotoTRBO repeater to communicate with DMR / MotoTRBO users on other repeaters throughout the region, country and world.
The repeater is also a part of a small sub-network of DCI called the PNW Network. The goal of this sub-network is to interconnect repeaters in the Pacific North West to eventually allow for seamless roaming along the I-5 and into the Greater Vancouver area. Currently there are repeaters on Mount Baldi, Cougar Mountain and now Mount Seymour. In order for seamless, zero touch roaming to work between Greater Vancouver, Whatcom County and the central/south western Washington segment of the network, one more repeater is required in the Mount Vernon area to bridge the gap. There are no other amateur radio voice repeater networks that offer seamless coverage between the Greater Vancouver area and south western Washington state, we hope that the PNW network will be the first. Eventually the network will also have repeaters extending further south into Oregon and even California.
Live Network StatusUpdated every 5 minutes
Click for full size
Updated 09 August 2016