[majoconz]

You have a selection of the most commonly used channels on the old band plan-
Channel 6 - 156.300 simplex - intership secondary
Channel 8 - 156.400 simplex - intership primary
Channel 12 - 156.600 simplex - Port operations
Channel 14 - 156.700 simplex - Port operations
Channel 16 - 156.800 simplex - Distress, safety, calling
All the high number channels are duplex port operations.

Don't know where you are in South Yorkshire, you might get some traffic on Ch16 from the Humber Radio coast station if they're still in operation (it's 55 years since I was up and down that coast!) and there might some activity around Whitby.