Tunnel Coverage Systems

Andrew leads the industry with the design and supply of cost effective tunnel solutions worldwide and offers several systems for inside tunnel coverage that include the ION Fiber Distributed Antenna System, Node repeaters, and ACB cable boosters.

The tunnel coverage solutions that Andrew supply meet the needs of both the general public, who expect their mobile phones to work at all times, and the emergency services who need reliable communications and personal safety.

Since road tunnels vary widely in their construction and layout, it is necessary to have a flexible approach to the design of systems to provide communications within them. Andrew designs systems using standard equipment, uniquely configured to provide the required quality of coverage for the specific tunnel.

Andrew products support all technologies, including but not limited to analog, Tetra, Tetrapol, TDMA, iDEN, IS-95, CDMA2000, GSM, GPRS, EDGE, and UMTS. All can be integrated into the Andrew A.I.M.O.S. Network Management Solution.

Tunnel Coverage Application Examples

SMALL TUNNELS: Coverage system that uses Node RF enhancers
A network of radiating cable connected RF repeater (Node) uniformly along the tunnel. This cost-effective system maximizes channel efficiency and signal homogeneity inside small tunnel and provides optimal voice quality and high speed data transmission.

MEDIUM SIZED TUNNELS: Coverage system that uses Node RF enhancers and ACB cable boosters:
For unlimited mobile communication in tunnels, this solution optimizes coverage cost effectively by using both remote bases station capacity and serial signal reconditioning in the tunnel.

LONG TUNNELS I: Coverage system that uses ION remote heads and Node RF enhancers
A network of fiber-connected ION remote heads will distribute radio signals from a pickup repeater (Node) uniformly along the tunnel. This system maximizes channel efficiency and signal homogeneity inside long tunnel and provides optimal voice quality and high speed data transmission.

LONG TUNNELS II: Coverage system that uses an ION FDAS in difficult areas
A network of fiber connected ION devices distributes radio signals uniformly along a railway line even as the train passes through difficult coverage areas, such as tunnels and hills. The system maximizes channel efficiency and signal homogeneity along the route and provides optimal voice quality and high speed data transmission.

For more information, email us: Contact Andrew/CommScope.