From the full press release about the weekend:

It’s been six months since the LV18 was devastated by an arson attack and this weekend’s live broadcasts will help raise money for the restoration fund to restore this unique ship.

Tony O’Neil, chairman of the Pharos Trust, said he was delighted that the ship’s studio would be available for the weekend, and this was a testament to the efforts everyone had put in since the fire.....

The LV18 is also broadcasting a new radio station, Haven Community Radio, serving the Stour & Orwell Stour estuaries.
https://havencommunity.uk/

Currently testing having announced their intention to launch this June.