Ray dio,
Scottg is not talking shite,as you put it he lives in Hastings,
This from the web..

Radio Caroline is available on DAB+ in the Hastings area via the Hastings (7B) multiplex. Coverage extends along the East Sussex coast as part of a licenced expansion to improve reception in the region. For a free, detailed coverage map, check the Ofcom website for the 7B Hastings service.
RadioToday
RadioToday
+2
Key Details for Reception:
DAB+ Channel: 7B (Hastings area).
Signal Info: The service operates under a community radio licence.
Alternative Reception: If DAB signal is weak in certain spots, the station is also available via 648 AM in parts of the South East and online.
Radio Caroline
Radio Caroline
+2
To receive the signal, perform a Full Scan or Auto-Tune on your DAB radio.

AgB.