Tunnel communication systems
Tunnel communication systems enable personnel to go underground in to a confined space safe in the knowledge that at all times they will be able to provide reliable & clear communication for all technologies and frequencies required. A very reliable technology in ensuring clear voice communication is a radiating cable (also known as a leaky feeder) network.
Modern digital radio systems are now capable of being networked by fibre optic cable and connected to IP networks. This allows interoperability between tunnel communication system components, such as radios, fixed telephones, video cameras and much more. Additionally digital radios allow users to ‘roam’ seamlessly between base stations which can overcome any potential base station voting problems.
For each tunnel, MTI Tech Ltd offers tailored engineering deployments to retransmit all requested radio services. RF signals are picked up, multiplexed, and converted into optical signals in the master station. Signals are then distributed by optical fibre down to slave stations. Finally they are converted back into RF, amplified and multiplexed.