Yes, and this should definitely be twisted pair, contrary to what's on a
highly regarded mobile site. Also, radio equipment in vehicles should
NOT by bonded to the frame/chassis/vehicle metal.
OTOH, coax return for HF mobile antennas SHOULD be bonded to vehicle
metal, because that's what serves as its counterpoise (often called a
ground plane).
BTW -- a major obstacle to this being a good ground plane is that the
metal parts of many (most?) vehicles are insulated from each other by
paint. An ohmmeter study between parts of the chassis is a worthwhile
effort.
73, Jim K9YC
On 8/24/2020 3:01 PM, Steve Hall wrote:
I highly recommend you run a power lead to the battery (ideally) or the
main power bus in the car interior rather than tap off the limited
accessory socket. Keep well under the fuse rating that feeds the
accessory plug if you go that route.
Steve WM6P
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