• Tunnelfunk

DAB+ Tunnel Voice Break-In (or In-house)

Industry leading technology and field proven DAB+ Tunnel Voice Break-in devices for emergency situations in tunnels/buildings.

Why should you choose PrecisionWave VBI devices?

Our VBI device not only offers many unprecedented features such as up to 6 ensembles in a single unit, but they are industry's lowest power consuming and smallest devices, saving substantial cost over the toal lifetime.
Plus: we are more than happy to customize and incorporate your requirements. Contact us!

Our Features

Small in size, low in power and large in features:

easy to configure, highly versatily DAB-Voice Break-In (Einsprechfunk) solution will have your needs covered - guaranteed!
  • Repeater and Voice Break-In mode
  • Scalable, up to 6 ensembles on a single unit
  • No GPS reception needed!
  • Automatic gain control (AGC) and precise RF input level measurement
  • Automatic reconfiguration on changes in the DAB/DAB+ ensembles
  • Low power consumption (less than 20W typ.)
  • Intuitive control software for device management and monitoring
  • Various interfaces, alarm outputs for signal loss or customizable inputs/outputs
  • Compact module or 19” device available
  • High reliability, MTBF
  • All-in-one hardware solution
  • Field proven systems
  • Industry leading performance (ask us for independently made measurement results)
  • Future ready: modulator/demodulator fully embedded in hardware, yet programmable (FPGA)
We further offer buy-in options (you only pay what you really need)
  • Dual RF output and individual selection of the mode (voice break-in/repeater) for two tunnel tubes with a signle unit
  • 24hr monitoring service
  • Second RF receiver available for in-tunnel RF signal monitoring on a full redundant setup
  • Two audio inputs for individual voice break-in on RF output 1 & 2
  • SNMP message service
  • VoIP
  • UKW Voice Break-In
  • Additional ensembles
  • OEM service - our device, your casing, your brand

How does Voice Break-In work and why is it needed?

Read the Funktionsbeschrieb (German only, English version in preparation) Blockschema

Hardware

The VBI hardware is based on our versatile embedded software radio platform with precision DAB+ or UKW front-endsand hence is readily customizable for your needs: whether you need additional storage, a GSM connection or something else - talk to us, we're happy to implement even the craziest ideas.
Casing
VBI Electronics
Custom fully milled aluminum case for absolute EMI protection and maximum RF performance. We offer both these small modules for customer integration or pre-fitted in standard 2HU cases including power supply (90-240V).
Casing
Original casing
19 inch rack
2-HU build

Software

You have full control over the device via our intuitive "WebCtrl" application. It allows easy setup of ensembles and real-time RX-power monitoring as well as customization of I/O and transmitted messages. It is your hub for audio control and VoIP and constantly shows system health status and alarm message history. Blockschema

Downloads

Product brief
Read all information about our innovative DAB+ Voice Break-In solution.
Funktionsweise VBI
What is Voice Break-In and how does its work? (German)

Live Demo

Gotthard Tunnel Demo

Video demonstrating live DAB+ voice break-in in Gotthard road tunnel. First, the break-in message is received and then the seamless switch-over to the standard program happens.

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