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Re: [TowerTalk] RF Quiet Router

To: "Jim Brown" <jim@audiosystemsgroup.com>,"Tower Talk List" <towertalk@contesting.com>
Subject: Re: [TowerTalk] RF Quiet Router
From: wa3afs@inav.net
Date: Sat, 02 Sep 2006 12:23:02 -0500
List-post: <mailto:towertalk@contesting.com>
I have a Linksys Wireless-G Broadband Router  (WRT54GS) in my shack and have no 
problems with any of the 
amateur bands...

But it does interfere with the X10 wireless cams. (2.4 gig)

But, once I installed the router, I lost the working EchoLink (now can not 
receive).  I have tried to disable all the 
firewalls in the computer ZoneAlarm) (and the router) and have verified that 
the proper ports were set in the router 
and firewall with no luck.

Good luck and 73
   -- Bruce

On 2 Sep 2006 at 8:25, Jim Brown wrote:

> On Sat, 02 Sep 2006 07:55:44 -0500, John. wrote:
> 
> >Looking for a recommendation on a  *RF Quiet Router.
> 
> I'm not sure that there is such a thing. It's a combination of the laws of 
> physics and the laws of economics -- that is, the circuitry will produce the 
> trash, it costs money to suppress it, and the vast majority of consumers 
> only buy on price. If you hear about one a lot of folks, including me, would 
> like to know make and model. 
> 
> The trash is radiated two ways. First, from the cables, mostly as common 
> mode. Ferrites will suppress a lot of that. See the tutorial applications 
> notes on my website. http://audiosystemsgroup.com/publish  Second, the trash 
> is radiated directly by internal wiring of the equipment itself because it 
> isn't shielded. For that, I recommend the bucket treatment. 
> 
> Note also that all ethernet equipment, including routers, communicate with 
> other ethernet equipment, and BOTH ends have transmitters that generate 
> noise, so both must have their noise suppressed. This includes, for example, 
> the computers and printers that are attached. This is one reason that 
> wireless networks are finding popularity in ham stations. The wireless 
> protocols can be a PITA, but there's less wiring to radiate trash. 
> 
> **  The bucket treatment: Fill a bucket with water. Put the offending device 
> in twice. Take it out once.
> 
> 73,
> 
> Jim Brown K9YC
> 
> 
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> 
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