An example of this is in the Dartford Crossing tunnel near London, where the programme "Virgin 1215" in the medium-wave band and the BBC's Radio 4 on 198 kHz long wave are rebroadcast in the tunnel.
Channel Tunnel | transmitter | tunnel | The Time Tunnel | Holland Tunnel | Fréjus Rail Tunnel | wind tunnel | Memorial Tunnel | Gotthard Road Tunnel | Severn Tunnel | Queensway Tunnel | Fréjus Road Tunnel | Transmitter | Thames Tunnel | Oslo Tunnel | Mont Blanc Tunnel | Lincoln Tunnel | Clyde Tunnel | Brooklyn–Battery Tunnel | Tunnel über der Spree | Tunnel | Ted Williams Tunnel | Tauern Road Tunnel | Spark-gap transmitter | North Cape Tunnel | Nauen Transmitter Station | Malpas Tunnel | Lyttelton road tunnel | Khun Tan Tunnel | Gotthard road tunnel |