maybe it's wired into the electric in some council building and can't be accessed to turn it off
I've heard of TXs getting walled up , like the famous radio galaxy 88.7 tx in Chelmsford, will that still be going 26 years later do you think?

wherever it is its causing no issues for the CAT in Crewe
it blocks MAR for me, i can see the weak modulation pattern of MAR but can't hear it
Andy, do you hear anything when MAR is off?