[RFI] Sylvaniai LED bulb interference 20 meters too

[Jim Brown]

On 1/9/2011 8:01 PM, Cortland Richmond wrote:
> It is apparently
> coming in through 12V powering the auto antenna tuners

This sounds like common mode on the 12V lead, getting into the system 
via "pin 1-like" issues in the susceptible equipment.  If that's a good 
guess, I'd put a multi-turn ferrite choke on that power lead to kill the 
RF current.  Something on the order of 5 turns through a 1-inch long #43 
would be a good start.

73, Jim K9YC