[RFI] Question about excess cable length & RFI
greg at obillow.com
Tue Jan 9 12:16:22 EST 2018
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.
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,
> 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;
>> 2) Download and study the slides for my tutorial talk on that topic
>> 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,
>>> RFI mailing list
>>> RFI at contesting.com
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