[Elecraft] OT: Routing coax near CAT5

Brian Lloyd brian-wb6rqn at lloyd.com
Sat May 26 16:57:25 EDT 2007


> So my question is, is all that RF going to interfere with my network
> connection or my phones? Any thoughts or recommendations?

So far everyone has addressed the issue of your rig interfering with  
your phone and your network so I won't spend much time on that except  
to add that, even if there is RF on the outside of the coax it  
probably isn't going to cause a problem with your networking gear as  
that uses twisted-pair and RF would show up as common-mode cruft  
which will get canceled out in the ethernet coupling transformers.

OTOH, RF noise from your networking equipment might get coupled to  
your feedline. Remember you are trying to listen to very weak signals  
and ethernet, while well-crafted so as not to radiate, does leak just  
a little. I would probably choose to route my feedline away from my  
ethernet wiring just to reduce noise pick-up in your rig.

73 de Brian, WB6RQN
Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT com




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