[Elecraft] [K3] Why fuse the negative lead from a battery?

[Jim Brown]

On 4/2/2011 3:40 AM, James Maynard wrote:
> In fact, boats are quite different from cars.  In cars, it is common to
> use the chassis as a common ground return.  In boats, this is forbidden.

While the chassis serves as an acceptable return for DC current, using 
it in this manner is a recipe for AC problems, like alternator while and 
RFI.  Ham gear should ALWAYS be powered by  paired conductors running 
directly from the power source, preferably a twisted pair.

73, Jim Brown K9YC