Re: [RFI] Question about excess cable length & RFI

[Greg Newberry <greg@obillow.com>]

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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