[TowerTalk] OT: Exterior Ethernet Cable

[Pete Smith]

At 10:52 AM 8/11/2008, Jim Brown wrote:
>On Mon, 11 Aug 2008 07:01:46 -0500, Matt Patterson wrote:
>
> >They also make shielded RJ-45 connectors if you are thinking of going
> >with the shielded outdoor gel filled CAT5E.
>
>I wouldn't throw money at shielded cable of any CAT-number. The primary
>interference rejecting property of that cable is the very high and very
>uniform twist ratio, and the primary RFI mechanism at HF is common mode
>current. Shielding won't help that much. Common mode chokes will. See
>http://audiosystemsgroup.com/RFI-Ham.pdf

Actually, I was looking at the shields for chipmunk resistance, not RFI.  I 
agree, I have seen no evidence of RFI on my existing cable, just toothmarks.

73, Pete N4ZR