Total posts : 45366
“I would appreciate hearing some thoughts from Ken himself and others on setting up a station on a sailboat docked at the marina.
One thing that concerns me is a docked sailboat is naturally going to rock a little, even in calm weather.. Wouldn’t that reek havoc on tuning the transmitter, and keeping it tuned?
As for the ground.. what do you do? – Simply run the wire under the boat?
And what of the processing equipment and computers? How would it fair with the dampness of a boat?”
Mine isn’t a sailboat, it’s an oiler, 1969 Owens lapstrake, and although it runs, it’s basically a dock queen, doesn’t go out. But before we discuss anything about grounding your TX you need to familiarize yourself with boat grounding systems if you haven’t done so. There’s more to it than meets the eye, particularly if you will be connected to shore power …
As far as the boat rocking goes, it’s hard to tell. We’ve had some severe windstorms, up to 50 knot gusts in the marina, and boat movement doesn’t seem to make much detectable difference, but it’s not nearly as high as a system mounted on a sail mast … the arc of sway would be far greater. Not sure what that would do, but tuning is a system thing, i.e., the movement might merely cause a little wavering of the signal when it happens, but shouldn’t throw the system out of tune per sé.
Dampness is always an issue, even on land in the NorthWest. You can’t let heat go down very far, things have to be kept dry where it counts. My boat is wood, and it barely sweats on the inside, but a fiberglass hull is a totally different story.
Except for improper grounding, I can’t see how a grounding environment as you described it could hurt the transmitter, i.e., IMO something else must have caused the gas-tube lightening arrestor to get damaged.