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Re: [Yaesu] RFI router issue resolved!

To: John Geiger <n5ten@yahoo.com>
Subject: Re: [Yaesu] RFI router issue resolved!
From: Steve London <n2icarrl@gmail.com>
Reply-to: n2ic@arrl.net
Date: Fri, 11 Jan 2008 17:20:33 -0700
List-post: <mailto:yaesu@contesting.com>
Why not just go wireless and get rid of all the CAT5 cables ?

As I unfortunately found out last summer, the CAT5 cables interconnecting all 
the boxes also provide another path for lightning-induced surges to be 
propagated.

73,
Steve, N2IC

John Geiger wrote:
> For those who may be having the same problem, I did
> resolve my RFI and router problem to the point where
> both the router and my Yaesu FT100D could co-exist. 
> There are a couple of minor birdies now, but I can
> live with them.  First, to answer a few issues that
> were brought up before:
> 
> 1. It wasn't the wallwart.  I have a Lanpro ethernet
> hub which is RF quiet, and I would use the wallwart
> from it on the various routers I tried, and the
> birdies were still there.
> 
> 2. I was using shielded CAT5 cables.  They were
> radiating the interfering signal, though, as when I
> disconnected them from the router, the birdies
> disappeared.
> 
> 3. I tried a couple of chokes on the CAT cable with no
> luck.
> 
> So here was my solution-I could only get 2 IP
> addresses through the cable company here, so running
> all 3 computers through the ethernet hub didn't work. 
> However, the router gets its own IP address, and then
> it will assign its own addresses to the computers
> connected to it.  I connected the router (Net Gear
> brand) to the cable modem, and connected the computer
> next to it directly to the router.  Its cable was
> short enough to not cause problems.  I then connected
> the 2 long CAT5 runs to the ethernet hub, and then
> connected the hub to another port on the router.  The
> isolation with the hub in line was enough to kill all
> of the birdies except for 1 or 2 which were reduced
> enough to live with using a notch filter (thank God
> the autonotch on the FT100D works on CW, but a manual
> notch is always better).  
> 
> Now all computers are connected to the internet, the
> cable company is happy, the radio is happy, and most
> of all, AA5JG is happy!
> 
> 73s John AA5JG
> 
> 
>       
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