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Re: [RFI] Home networking birdies

To: rfi@contesting.com
Subject: Re: [RFI] Home networking birdies
From: "D. Kemp" <nn8b@yahoo.com>
Date: Tue, 19 Sep 2006 10:47:28 -0700 (PDT)
List-post: <mailto:rfi@contesting.com>
Thanks guys for all the good suggestions.

My RFI is on 14.030 and some smaller ones up and down
from there. It seems to be getting on through the
antenna; if I disconnect the coax from my rig it goes

I have done the following:

1. Put some toroids of my cat5 cable on both ends.
These are the rectangular split type. No help, same
level of interference.

2. The cable from the D-link router seems to be the
RFI generator. If I unplug it from the hub there is a
great decrease in the level of the RFI signal. 

3. If I unplug the power from the Netgear hub and then
run the feed cat5 from the d-link directly  into the
computer there is a good reduction in the level of RFI
from an s5 signal to an S1 signal.

4. I covered the Netgear hub with foil as per one
suggestion without any difference in RFI signal

5. I wrapped the dc power cable of the D-link router
onto a toroid. No help.

6. Wrapped the power cable of the Netgear hub onto a
toroid. No help.

7. Wrapped the D-link router with foil. No help.

I am thinking of 2 direct runs from the router using
shielded cat5.

What about shielded cat5? Anyone have experience with
using it?

The large toroids may help, but they are expensive, I
don't have any, and it might be better spent on cable
if shielding would work.

Any more suggestions?

Thanks again for all the help.


Don, NN8B
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