[RFI] Wired vs Wireless Routers for RFI
jvpoll at dallas.net
Wed Jan 9 20:37:32 EST 2008
>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 at arrl.net>
To: <rfi at 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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