On 10/7/2010 3:42 AM, Hare, Ed W1RFI wrote:
>> I do know the CAT5e and CAT6 do radiate making the use of 2-meter HTs
>> > problematic within about 75 feet of the cable runs.
>
> That almost sounds like something could be wrong. At ARRL HQ, we have an
> extensive Ethernet and radio operation continues pretty much noise free.
I don't use wired Ethernet here in CA, but I did in Chicago. 2M HTs
heard a LOT of noise in close proxmity to the CAT5 wiring in the room
that was my combined shack/office, and I did NOT notice an improvement
when replacing low quality stuff with Belden Mediatwist (a very high
quality CAT6/7 cable). My noise level there was far too high to hear it
in a roof-mounted vertical 50 ft or so from that wiring. This is
broadband noise I'm talking about, not the modulated carriers that
clustrer around 14030, 21052, etc., which can be effectively reduced by
multi-turn ferrite chokes.
73, Jim K9YC
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|