It is used to control numerous types of radiotele- phones operating under conventional analogue networks as well as digital trunked networks such as EDACS, TETRA, MPT1327, DMR, IDAS, and NEXEDGE. The hardware and software have been designed speci cally for this purpose and as such they ensure the highest level of reliability possible. The controller is able to control a whole range of radiotelephones produced by di erent manufacturers. Protocols which have so far been integrated include Motorola Solutions, Yaesu, Vertex, Kenwood, Icom, SpectraEng, Hytera, Harris, TPRadio, Radmor, etc.

Hardware

The Minikom IP controller is produced in a form of modules installed in a standard 19” rack with a height of 1U. Two Minikom IP controllers can be installed in one 1U case.

The HOT SWAP technology and the fact that con- nectors are detached from the main board enable the user to replace faulty components without the need to disconnect the connecting cables or switching o the power supply. This makes it much easier to carry out any potential maintenance work.

 

Local Control

The controller is equipped with LCD display, status LEDs, internal speaker and a universal control knob. These front panel components enable quick diagnostics of current status and they indicate potential operating errors of the controller and the control network.

The module can be con gured swiftly using the control knob, i.e. without having to use an external computer. If need be, it is possible to connect an external microphone and, using the built-in speaker, actively communicate over the radio network with the possibility to change the channel, the talk group, volume, etc. In service mode, voice communication can be conducted between the controller and a dispatch centre via the IP network.

Administration

The controllers are provided with administration software that allows remote con guration and rmware replacement. The monitoring functions are extended by an internal and external thermal sensor, radio diagnostics and SNMP support.

The built-in VoIP codec enables the use of di erent formats for voice transmission using bandwidths ranging from 8 kbit /s to 64 kbit /s.

 

Hardware Features

  • Rack height: 1U for two controllers
  • HOT SWAP, the possibility to replace controller cards without disconnecting control cables and the possibility of applying external temperature sensors
  • 3 general-purpose alarm inputs with a status change signalling function displayed on digital dispatch consoles
  • Internal speaker and a microphone connector for local control and service intercom

Supported Protocols

The built-in DSP enables the controller to operate multiple radio communication protocols independently of the base radio used. There is a whole range of functions, for example: decoders of di erent radio standards or signal intelligibility.

In the case of a radio simplex network with a duplex subscriber ( e.g. telephone), the built-in VOX function can be used.

  • Simplex and duplex work
  • Built-in VoIP hardware codec (G.711, G.723, G.726, G.728, G.729)
  • Built-in CTCSS and DCS encoder / decoder, DCS invert
  • Built-in encoder / decoder for 5-tone signalling of all common standards (including ZVEI, CCIR, EEA, EIA) with the possibility to de ne new, speci c user standards
  • Built-in encoder / decoder for maritime DSC system (digital selective calling) and ATIS inland navigation signalling
  • RSSI level (both in analogue and digital mode) and recognition of speech disruption level
  • Audio signal delay in the case of simplex-duplex operation, e.g. during RADIO <-> TELE- PHONE calls
  • Local recording of voice correspondence on internal memory card

This solution is particularly suited for:

  • Police stations – A local radiotelephone can be used by an operator who is on eldwork duty with his unit and at the same time perform a function of a remote radio transmitter for the municipal or district police headquarters, e.g. to increase the coverage and current situation awareness of the municipal or district headquarters with the use of Voting mode.
  • Rescue and Fire ghting units and some Volunteer Fire Brigade units which are on permanent duty – A local radiotelephone can be used by an operator responsible for setting o alarms / emergency calls and at the same time perform a function of a remote radio transmitter for the municipal or district Fire Brigade headquarters, e.g. to increase the coverage and current situation awareness of the municipal or district headquarters over a local channel with the use of Voting.

Compared to the standard version, the Minikom IP desktop features:

  • Possibility to operate local radio with the desktop microphone (included in the set) and built-in speaker.
  • Possibility of running intercom correspondence with a superior dispatcher via private IP network without burdening the radio network.
  • Possibility to connect local radio (e.g. in JGR PSP) to alert local services from the level of the superior (city / county) control station.
  • Optionally included controller power supply and connected base radio.