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@nobis.net
> On Dec 30, 2016, at 19:13, Chuck Gooden <Chuck.Gooden@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@nobis.net <mailto:n7rjn@nobis.net>
>>
>>
>>> On Dec 30, 2016, at 14:29, Chuck Gooden <Chuck.Gooden@comcast.net
>>> <mailto:Chuck.Gooden@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
>>> _______________________________________________
>>> RFI mailing list
>>> RFI@contesting.com <mailto:RFI@contesting.com>
>>> http://lists.contesting.com/mailman/listinfo/rfi
>>>
>>
>
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