Yes it is connected to the aluminum window frame just below the roof line the roof is folded over the siding and clamped down with an aluminum bar full length of the camper. I went all over this thing with a maga ohm meter it's amazingly conductive. I have tried a 3 foot SS ground rod but I don't believe it made a bit of difference so I don't bother any more I guess plugging it in does at least as well as the ground rod. I do part time time electrical work for a local camp ground and have replaced and installed power pedestals and they get buried 4" deep.
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