[RFI] Question about excess cable length & RFI

[Greg Newberry]

Thanks Dave. I may just do the same. It does not seem to make a 
difference in my limited experience, but it sure is neater.

73,
Greg


On 1/8/2018 9:46 PM, Dave Cole (NK7Z) wrote:
> I try and coil my excess power cords, etc on ferrite cores...  Maybe 6 
> to 8 turns, on each core.
>
> 73s and thanks,
> Dave
> NK7Z
> http://www.nk7z.net
>
> On 01/08/2018 08:06 PM, Jim Brown wrote:
>> Hi Greg,
>>
>> Before you do ANYTHING:
>>
>> 1) Buy and study the new ARRL Book on Grounding and Bonding;
>> or:
>> 2) Download and study the slides for my tutorial talk on that topic
>> http://k9yc.com/GroundingAndAudio.pdf
>>
>> AND
>>
>> 3) Download and study my tutorial on finding and killing receive noise
>> http://k9yc.com/KillingReceiveNoise.pdf  (Written tutorial)
>> http://k9yc.com/KillingRXNoiseVisalia.pdf (Slides for talk at Visalia)
>>
>> Do NOT cut power cables short -- if the gear is noisy, you may need 
>> to use the extra length to wind ferrite chokes. Bonding cables SHOULD 
>> be short.
>>
>> 73, Jim K9YC
>>
>> On 1/8/2018 6:33 PM, Greg Newberry wrote:
>>> Hello all,
>>>
>>> I've been following the forum for a while and learning a great deal 
>>> about RF, RFI, etc. So I'm in the process of cleaning up my ham 
>>> shack. Putting in a SPG (single point ground) and in general, being 
>>> pro-active about RFI.
>>>
>>> One thing I'm not sure of; what should I do with the excess length 
>>> of power cords. i.e. A 6ft cord on my computer, but it's only two 
>>> feet to the outlet. Extra length on wall warts, audio cables etc. ?
>>>
>>> Coil them up, bunch them up? I don't really want to cut them all 
>>> down to length, as I do move things around.
>>>
>>> Thanks in advance,
>>> Greg
>>> WB7DUO
>>>
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>>>
>>
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