DMR Cellular Networks

DMR Cellular Networks

Multiple ECOS-D radios are typically connected together using an IP core network to form a wireless cellular network, i.e. the decoupling or disconnection of the radio cells is achieved through the use of different radio channels.


The key benefits of a cellular digital private mobile radio network are:

  • No manual channel switching necessary when moving between cells (this takes place automatically through the so-called roaming process)
  • Simultaneous communication is possible in all radio cells, i.e. the whole radio network delivers a greater capacity compared with a similar simulcast network


Frequency range

4m, 2m and 70cm


Operating mode

The cellular private mobile radio network can be configured to operate in conventional (Tier II) mode or in trunking mode (Tier III). In conventional mode a 12.5 kHz radio channel provides two communication channels per radio cell for simultaneous and independent communication.



Over the whole area of coverage the following services can be used, provided the appropriate terminal devices are available:

  • Digital voice services, i.e. via DMR (individual call, group call, all call)
  • Digital data services via SDS (short data messages) or IP

Depending upon the mode, analog voice services can be used with existing or DMR terminal devices.


By adding further infrastructure components, dispatcher services and telephone call services to simple wired terminal devices or to existing extension telephones can be realized.



Irrespective of the operating mode, the cellular private mobile radio network can be extended (i.e. through the addition of a further location) or its capacity can be expanded (i.e. by a further radio channel).