Thanks Pete, sooo you'd say that the safeshore onboards are better? Which one if so? Thank you for your comments btw. I don't understand the talk about meters & alerts, more so I just want to fit one so it's done. My boat is 11yrs old, Stowe Hill. In a marina for winter then out next Spring, possibly to more shoreline power. TBH, I'd fit the cable type one at the boat end & cover it with the cable itself. I don't think it would be noticeable and I don't believe the other people on this thread posting about it being stolen. My aerial, which is always on my roof, has been there for 3yrs and nothing has been taken from anywhere else. Just another example of certain people on this forum being overly grumpy & cynical?!