[RFI] ignition noise

Jim Brown jim at audiosystemsgroup.com
Thu Apr 27 15:09:26 EDT 2006

On Mon, 24 Apr 2006 12:46:08 -0400, WA3GIN @ Arlington County, VA wrote:

>I bypassed them to ground and ran a dedicated 
>ground from the negative side of the brake lamp to the frame rail.  
>Problem solved.

Don't count on that working in a Toyota -- the body in my Toyota Sequoia is an 
unmitigated disaster as a "ground" -- virtually all body to body (and even wiring 
to body) contacts have paint in the way. When I tried running 100 w on 20m to a 
hamstick with the braid of the coax bonded to the body near the roof, the 
vehicle's computer locked up and stopped me dead!  I managed to get running again 
only by pulling the power feed from the battery to let it reboot.

Since I'm still in the middle of a cross-country move, I haven't had time to try 
to fix it, but it looks like a huge project.


Jim Brown  K9YC

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