[Elecraft] Spaghetti Wire Zip Cord to connect m K3 to the power supply.

Jim Brown jim at audiosystemsgroup.com
Sun Sep 8 12:13:04 EDT 2013


On 9/8/2013 6:02 AM, Richard Thorne wrote:
> I'd like to get some 'spaghetti' wire that is zip cord type. 

What do you mean by "spaghetti wire?"  Zip cord of any type should never 
be used around transmitter sites because it is really poor at RF 
rejection.  Twisted pair is MUCH better -- it provides 30 dB or more 
rejection of noise and RFI as compared to parallel wires (zip cord).

Over the years, I've cured a lot of RFI to home stereo systems by 
replacing zip cord, glorified or otherwise, by twisted pair.  In North 
America, at least three very good cable companies, Belden, Gepco, and 
West Penn, all manufacture twisted pair cable sized in the range of #13 
to #10.

We can easily "roll our own" twisted pair simply by buying two colors of 
stranded wire at the local big box store, spooling out needed lengths of 
both colors, sticking one end of both conductors in a vise and the other 
end in a drill, and twisting.  Works great!

73, Jim K9YC


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