Connecting radios all over the world

Mimer RadioServer

When you need to access your devices from several WAN or Internet based dispatchers.

The Mimer RadioServer is needed in larger systems were TCP is used (usually when running over the Internet). Since the Network Interface only can connect to one dispatcher PC at a time.

(In local systems using UDP to connect, you can have many operators without a server)

The number of connected dispatchers can be expanded by installing a Mimer RadioServer at the base station site.

The server can also be installed at a dispatcher central to distribute radio resources to other dispatchers over the Internet.

This is perfect when you have for example a taxi company with local dispatchers during the day and remote at night, or dispatchers that need to work from home.


The server has a capacity of 64 connections each configurable for radio or dispatcher. Like this:

  • 2 radios x 32 operators
  • 4 radios x 16 operators
  • 8 radios x 8 operators
  • 16 radios x 4 operators
  • 32 radios x 2 operators

The Mimer RadioServer is delivered as a self contained small Linux computer running on 5VDC. It will start by itself if there has been a power failure. It has low power consumption and is easy to install also with power back up.

Virtual Server

Mimer RadioServer is, as standard, delivered pre-installed on a CF-card mounted in a compact industrial x86 computer.

However, it can also be delivered as an OVF- file to be run on a virtual computer using Oracle Virtual Box. The Virtual box will be set to run a 32-bit Debian Linux machine. The virtual disk will be 2GB in size and allocates 512MB of RAM.

The current virtual machine file has been created and tested using Virtual Box version 5.1.26

It is now also tested for use on VMWARE.

Mimer SoftRadio
Mimer RadioServer, front side
Mimer RadioServer, back side

Mimer RadioServer

Plus connectors

Runs on 5VDC, 4A,  through
an adaptor that needs 100-240VAC

Technical Issues

We gather technical questions and answers on
this page!

RadioServer setup window

RadioServer – Web browser setup

Radio Server status window

RadioServer – Web browser status window

Web browser setup menu

The Mimer RadioServer now has a web browser based setup interface.
From firmware 1.29 and higher.

All settings of connected radios, IP addresses etc are easily done through a standard web browser.

There is also a file of old settings so that it easy to revert to a previous setting.

Web browser status window

The Mimer RadioServer has a web browser function were you can connect and see the status of the server.

You just need to browse the IP of the server and it will give you information on connected radios and connected operators.

It will also show if an operator is transmitting.

No changes can be made to the server from this interface, it is “look only”.

High latency and high jitter?

Use our Satellite version of the Radio Server!

Already in the standard version of the Mimer RadioServer, much higher levels of latency and jitter can be handled than in the Network Interface.

For connections with extra demands there is also a special version of the RadioServer that improves this even more. Recommended for users with Satellite connections and/or VPN tunnels.

When using the satellite version you always need a Mimer NetworkRepeater at the dispatch end.

RadioServer / NetworkRepeater

In some cases a NetworkRepeater is the correct choice and not the RadioServer. In some cases you need a combination of both.

Read about the NetworkRepeater here.

Download a description off the differences between Mimer RadioServer and Mimer NetworkRepeater from the Technical Download Page.

Remote operators connected through a RadioServer

Connection with a Mimer RadioServer at the base station site.
The server can handle one or many radios at the same site and many dispatchers at different places.

Remote setup showing UDP and TCP connections

Showing one radios connection through UDP to the RadioServer and one operators connection through TCP to the RadioServer.

Operator in City A talks to a car in City B over DMO

Example with several police stations with their own small systems. They are also connected together through their own WAN. With help of the RadioServers, operators at other police stations can remotely connect to each others radios.

In this case for operating a remote Tetra radio in DMO if the Tetra net does not function.

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