[Ham-Mac] ethernet hash

[EZ Rhino]

John,

I don't need to turn off the computer, only unplug the ethernet cable from it.

Chris


On Feb 2, 2010, at 17:02 , John L Merrill wrote:

If you turn the Mac and PC off does it go away? I think I have a similar 
situation here.

John N1JM

On 2/2/2010 4:44 PM, EZ Rhino wrote:
> Guys-
> 
> Wondering if any of you have dealt with ethernet noise showing up all over the RF spectrum for your iMacs?  I recently got fast(er) internet at home and now I get a very loud spike (sounds like a CW carrier) every 50khz or so from 20m to 2m.  It's aweful.    Specifically, the internet is from an access point to my home via a dish on the roof, then cat 5 from the dish to my 24" iMac.
> 
> Today I tried cabling the internet/cat 5 to an Apple Airport Extreme wireless router, and then let my iMac pick up the signal wirelessly.  It didn't kill the noise.  I even replaced the cat 5 they installed with shielded cable to no avail.  Wrapping the cat 5 around toroids begins to reduce the RFI a bit.
> 
> If I connect two computers--Apple or PC--together with cat 5 in the shack, I get the noise.  If I connect two computers together on the opposite side of the house I can't hear the noise in the shack.  So it seems to be a proximity thing.
> 
> At this point I'm facing moving the dish to the opposite end of the house which I don't want to do, thought I'd see if anyone here has similar problems.  There are several posts on QRZ.com/eHam.net forums with similar complaints.
> 
> Chris
> KF7P
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