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Re: [RFI] Wired vs Wireless Routers for RFI

To: "Phil Duff & Ann Duff" <na4m@arrl.net>, <rfi@contesting.com>
Subject: Re: [RFI] Wired vs Wireless Routers for RFI
From: "Jim P" <jvpoll@dallas.net>
Date: Wed, 9 Jan 2008 19:37:32 -0600
List-post: <mailto:rfi@contesting.com>
>Radio Shack (eek!) sells (or used to sell?)  plug 
>in wall "AC Adapters" (12vdc @ 1a & not 
>switchers I think) that might be worth trying to 
>replace noisy wall wart switchers. 

The noisy little switcher on my Linksys switch I 
replaced (for awhile) with a big old linear lab 
supply ... ran hot as the dickens because the 
Linksys only wanted 3.3V on the input from
the switcher while it consumed 2 or 3 amps.

Jim P // WB5WPA //

----- Original Message ----- 
From: "Phil Duff & Ann Duff" <na4m@arrl.net>
To: <rfi@contesting.com>
Sent: Wednesday, January 09, 2008 7:25 PM
Subject: Re: [RFI] Wired vs Wireless Routers for RFI


> Betcha a lot of these birdies are from switching type wall warts 
> powering the routers.
> 
> Build a little sniffer from a couple small loops of wire on the end of a 
> short piece of small coax. Plug one end into the radios antenna input 
> and put the loop end close to the wall warts and check for noise.   
> Radio Shack (eek!) sells (or used to sell?)  plug in wall "AC Adapters" 
> (12vdc @ 1a & not switchers I think) that might be worth trying to 
> replace noisy wall wart switchers. 
> 
> I use a LinkSys WRT54GS wireless router that doesn't seem to bother me 
> with any noticeable birdies with it's factory supplied wall wart.   YMMV!
> 
> 73 Phil NA4M
> 
> 

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