How many control nodes are there in a DMR network? Which is the control node in a multi-node network? What is the function of a node?

If you are having trouble answering these questions, it might be time to take a refresher course on the role of nodes in a DMR network.

In a DMR network, there are nodes with two functions, a control node and a switching node. There is only one control node in a network, and in a multi-node network, the lowest numbered node is the control node.

To help you visualize what this explanation looks like, the course DMR Network... Continue Reading

If you have been following our posts on the architecture of a DMR network, you will be beginning to understand the full overview of how the network functions. This time we will be taking a look at the two main architectural types of a DMR Tier 3 network.

The first main type of architecture in a DMR Tier 3 network is a centrally controlled network in which powerful computers are employed to control and switch voice and data packets. The second type is a distributed model where each site in the network has switching and controlling abilities of voice and data between... Continue Reading

Do you know why IP was chosen as the method of moving voice and data? Confused about what IP actually is? The answers to your questions on Linking Infrastructure are a few clicks away.

If you aren’t familiar with the various elements of a DMR network, the IP backbone might be a foreign element to you. The lesson DMR Network Architecture: Linking Infrastructure gives you a clear description of what linking infrastructure is and how it is all interconnected.

If you would like to learn more about the architecture of a DMR network, watch the video below and... Continue Reading

The ability to identify the key elements of a DMR network and grasp how they work can be daunting. Thankfully, the Radio Academy makes it easy to learn.

The DMR network design in scalable, it can be a single site, or it can be a large wide area network but there are elements that stay the same in all networks. The lesson DMR Network Architecture: Network Overview, lists these elements in a clear and easy-to-understand way. The lesson also includes a diagram of a full DMR solution. By the end of the lesson, you’ll be able to understand how it is all connected.

If... Continue Reading

Better voice quality, better functionality and security as well as channel efficiency were the original requests that led to DMR being ratified in 2005. There are many other benefits that DMR offers to users, technicians and managers.

As well as being an open standard technology, DMR is also capable of transmitting voice, but the end-to-end digital nature of DMR enables data application such as text messaging, GPS and SCADA. Along with 7 other benefits that the lesson Benefits of DMR identifies, it is apparent why the standard is so popular.

If you would like to learn... Continue Reading

Developed by the European Telecommunications Standards Institute, Digital Mobile Radio (DMR) was the solution to calls for better voice quality, functionality, security and channel efficiency. Since then it has become one of the most popular standards in critical communications.

If you aren’t familiar with this standard there are some differences between DMR and other standards such as P25 and NXDN. The lesson DMR Standard: What is DMR? will give you a comprehensive and easy-to-understand introduction into what DMR is, what Tiers the standard works on and how DMR utilizes... Continue Reading