[RFI] New 857, won't TX on 20m - RFI in truck meters and dial lights (kd4e)

[Jim Brown]

This is very bad advice. A major CAUSE of RFI to auto electrical 
systems is lousy chassis bonding due to excessive emphasis on 
painting the chassis parts. The body of a vehicle is a big broad 
mass -- IF all parts are well bonded together. Resonances and RFI 
occurs when it is NOT well bonded. 

73,

Jim Brown K9YC

The On Sun, 14 Sep 2008 16:32:01 +0000, Keon wrote:

>I think you have created a ground loop. The thing is, bonding is 
good but in bonding you can create resonate length wires and stuff 
if you bond too much. 

>Worse come to worse, unbond everything and start over. Bond the 
doors and hook and check the bands. Then bond a bit more.

>I suspect  if you bonded your exhaust and you are driving a big 
truck; that is long enough to resonate on 20 so unbond that first.