I think part of the problem here is that car manufacturers are more
concerned with rust than RF, hence no bare metal anywhere.
Joe N1FCJ
At 12:00 PM 1/11/2006, you wrote:
>Prior to installing the rig, Ron, K9IKZ and I poked around with an ohmeter
>to see what was bonded to what so that we could find a decent connection to
>the body for the antenna and understand how the vehicle was shielded. What
>we learned is a disgrace -- two bolts a few inches from each other holding
>the luggage rack to the body read 60 ohms between them. Bolts at opposite
>ends of the luggage rack and on opposite sides are 3-6 ohms apart. A copper
>strap supposedly tying the battery negative terminal to the body reads >10
>ohms to those bolts and to the body near the bond! In other words, almost
>nothing is bonded together, all the bolts and washers have paint between
>them and the body.
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