[RFI] DTV and Powerline RFI

[Jim Brown]

On Mon, 6 Oct 2008 10:00:56 EDT, Jimk8mr at aol.com wrote:

>RF interference picked up at the receiver front end will result in  
>pixelation, freezes, or the blue screen of death. I don't have a good feel yet  as to 
>just how sensitive sets will be to RFI of this sort.  The  "good" news is that 
>the interferee will probably not know what hit  him.

Yes
> 
>It is still possible that RFI will occur as audio rectification,  as any 
>stereo or other device is already prone to. The same measures, i.e.  ferrites and 
>the like, will still be the cure for this.

In recent times, interference to the TV itself is not nearly as common as interference 
to the audio system. TV sets seem to have gotten better (more robust with respect to 
RFI), but the audio/video equipment that may be hooked up to the set to provide improved 
sound quality are FAR more likely to receive interference. Interference is often picked 
up on loudspeaker wiring, coax from the roof antenna or cable/DTV system, and audio 
hookup wiring. 

See http://audiosystemsgroup.com/RFI-Ham.pdf for details of causes and solutions.

73,

Jim Brown K9YC