From: Jeff@invalid.invalid   
      
   On 10/10/2023 00:32, Brad Johnson wrote:   
   >   Jeff Layman wrote:   
   >>> I have a 6-months old Fantasia ceiling fan (mains powered, with 6-speed   
   >>> reversible dc motor) which is causing a lot of interference on MW.   
   >> FM   
   >   
   > you can try and put a AC line filter as close to the device as you can ,  3   
   wire AC feeding is better ....   
   > DC motor may need bypass caps , which might be a problem for the 6-speed    
   driver....   
   > The clamp on fairrite  or a core should be on everything in a ham home, and   
   all overhead AC drop lines IMO.   
   > the type 75 cores are only about $1 and go after all the noise below 1mhz (   
   that's is where most of it comes from )   
   > you may be able to use the AC line filters on DC if amp rating is enough (   
   leave a little margin here... )   
   > tips from a solar-powered ham radio operator.   
   > pics on my QRZ site Ko6kL   
      
   LOL!   
      
   I posted the original query almost 9 years ago! It was fixed a few days   
   later by using a delta suppression capacitor and ferrite ring large   
   enough to take all the mains leads.   
      
   --   
      
   Jeff   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)