[RFI] Re-wiring station

[Robert Nobis]

Chuck,

I have never seen anything on number of turns. I simply wind as many as I can get in a given length of zip cord.

73,


Bob Nobis 
n7rjn at nobis.net


> On Dec 30, 2016, at 19:13, Chuck Gooden <Chuck.Gooden at comcast.net> wrote:
> 
> Bob,
> 
> Thanks for the info.   I did read K9YC documents which I found quite informative but the question on how many turns really was not specified.  I was hope someone could point to a study that might relate the number of twist to effectiveness at different frequencies or conditions.  I searched google but have found one yet, but I do know twisted pairs work very well.  It is interesting to note that each pair of wires in a CAT5/6 ethernet cable has a different number of turns to prevent cross talk between pairs.  Therefore some one must of figured this out.
> 
> Chuck Gooden
> 
> 
> On 12/30/2016 4:01 PM, Robert Nobis wrote:
>> Hi Chuck,
>> 
>> Using twisted pairs is always a good idea. You might wish to review the tutorial written by Jim Brown (K9YC). http://k9yc.com/RFI-Ham.pdf
>> 
>> 73,
>> 
>> Bob Nobis
>> n7rjn at nobis.net <mailto:n7rjn at nobis.net>
>> 
>> 
>>> On Dec 30, 2016, at 14:29, Chuck Gooden <Chuck.Gooden at comcast.net <mailto:Chuck.Gooden at comcast.net>> wrote:
>>> 
>>> 
>>> Currently getting back into ham radio and re-wiring my station.  I would like to eliminate as many spurious signals as possible.  Does it make sense to put the red and black zip cord used for DC power feeds in a drill to twist it to reduce and cross talk and coupling of stray signals?  If so how do you determine the number of twist per foot for effective results?
>>> 
>>> Chuck Gooden
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>>> 
>> 
> 
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