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?
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.
Formerly Still known as Lee H
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