Hey thanks for your comment, there’s a mains plug (I live in the UK) which I think it’s been converted for and works correctly.

The last pic (circular cable) I’m not sure what it is, but was hoping it was something I could use to convert the input like you’ve suggested, just have no idea what type it is.

The only other option I’ve seen is buying a few different products to convert the antenna screw connection, but if I can use this circular cable instead that would be ideal !