I really don't believe that the electronics are that susceptible, within reason (don't weld the radar bracket with the receiver sitting on it.) Most devices are well protected because the environment is naturally nasty; e.g. bumping the engine starter puts out huge surges and the contact arcing radiates RF.
Range Tracker, a Victory ship that supported the Bikini hydrogen bomb tests and other Pacific Missile Range projects was filled with electronics, designed before hardening was appreciated, and the shipyard crews routinely cut and welded large hunks of the steel hull without precautions. Yes, some of the modern TIG welders radiate on a particular frequency, but the classic "stick" arc welder emulates the spark gap transmitters from the early 1900s and radiates on all frequencies.
I would keep the electronics "buttoned up;" i.e. cables in place and covers on. If you do remove them, I'd suggest that the trunk of a car, parked in the summer sun, would not be a more benign environment.
<ryanw59@comcast.net> wrote in message news:1108681667.273992.327170@c13g2000cwb.googlegroups.com...>I have a 16' aluminum boat that I've been using for a while and I want> to customize some things on it, such as rod holders, downrigger mounts,> etc..>
My question is do I need to take off all the electronics, including> 30hp outboard, from the boat so that the welding doesn't affect/fry any> of the electronics?>
My assumption is yes, get everything electronic off the boat.>
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