See Telecom focuses on extending RF propagation into coverage black spots in tunnels and buildings. It can also combine these technologies and add FM, AM and DAB broadcasting, which can be equipped with speech break-in for both live and recorded messages. Different messages can be transmitted to different parts of the tunnel and in different languages.
See Telecom also provides an advanced platform for local/remote monitoring and control, which uses fully implemented SNMP (simple network management protocol) and Ethernet. It can also be integrated with SCADA (supervisory control and data acquisition).
It provides two categories of RF-communication products: tunnel systems with rack mounted modules; and wall mounted repeaters. The company has deployed its equipment in a wide variety of metros, road and rail tunnels and major buildings primarily in Europe.
Jan Van Hoecke, director of sales, says: ‘We offer end-to-end solutions and our software integrates everything, so we are a multi-server, multi-client provider. Solutions are normally built around our modular system, although we can integrate third parties if necessary.’
Van Hoecke cites as an example the Taksim Line on the Istanbul Subway in Turkey, which has two masters (one for redundancy) and 12 slave repeaters to handle a combination of police and fire VHS and UHF analogue systems and the TETRA system used by the metro staff.
He sees more business being driven by regulations in Europe requiring landlords to provide radio coverage for emergency services within buildings. Another source of new work is in Eastern Europe where a lot of simplex channels are still in use. Users want to extend coverage seamlessly into tunnels, but still retain their simplex systems and use the same terminals.