Tunnel radio communication scheme

Radio communication takes place inside the tunnel. Or radio communication inside and outside the tunnel.

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Humans have never stopped on the road to transforming nature. Many super projects are under construction. Cross-mountain tunnels, subway tunnels, and undersea tunnels play a very important role. The depth of the most submerged subway tunnel is also around 20m. Wireless communication between underground workers and ground staff is especially important. It is a necessary equipment for project management.

Tunnel construction

Tunnel construction

Subway line

Subway line

Road tunnel

Road tunnel

Railway tunnel

Railway tunnel

Tunnel excavation

Tunnel excavation

Tunnel radio communication scheme

The relay station signal is processed by the power divider. Divided into 2 signal sources. A signal connects the internal antenna of the tunnel. Another signal is connected to the ground antenna. Two antennas work at the same time. It can receive signals inside the tunnel and also receive terrestrial radio signals. It is forwarded simultaneously inside the tunnel and on the ground. Let the tunnel and ground personnel communicate freely.

Retevis RT92 IP Networking Repeater, which can connect 3 repeaters via the network. Form the network. Radio communication is possible without geographical restrictions.

Scheme topology

  • Support P2P network transmission, communication is not geographically restricted.

  • DMR Digital Repeater, low system cost.

  • Support digital voice encryption, communication is more secure.

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