[Elecraft] Elecraft: RFI Problems

[frank]

Regarding the RFI problem when running 100W.   
I also had a bad RFI problem when running 100W. It would get into 
the computer, TV and all the audio equipment in the house.  

What I finally did to cure the problem was I ran 3/4 inch flexible 
copper water pipe from the shack out 20 ft to the yard, where I laid 
down a 50 ft length of 3ft wide galvanized fence.  The 3/4 inch soft 
copper flexible pipe provides a large surface area for the RF.  

Then every 10 ft along the length of the fence I drove in a 3 ft 
copper ground pipe and soldered it directly to the fence.   So I 
have 5 ground rods at different points along the fence as it lays on 
the ground.  Next  spring the grass will grow over it and hide what 
I have done. 
Then in the basement ham shack I used a copper ground buss behind 
the equipment and ran 3/4 copper braid to all equipment including 
the computer.   

This took me about a weeks worth or hard work.  Now I run 200 Watts 
without any RFI at all on any band.     If I run a full legal limit 
1.5kw there are a couple of bands where I get into the audio of the 
HiFI set.  
And that can be solved with some RFI filtering on audio amp and 
speakers when I get around to it.    Its a real treat to run the ham 
rig without having anyone in the family getting upset :-)  

-- frank  W7is 

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