Radio works in tunnels.

chudleighpaul

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Jan 7, 2010
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Until recently I could never get radio reception in the Blackwall Tunnel, but recently this has changed, and now the reception is near perfect.

How is this achieved?
 

Lee H

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Oct 7, 2010
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Potentially a relay? It's a bit of a traffic balckspot, so it would make sense to have a relay for the traffic news. This could have been off or faulty before. I think the Mersey tunnel has the same thing.
 

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