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Re: [RFI] 48v DC Clean Power Supply

To: rfi@contesting.com
Subject: Re: [RFI] 48v DC Clean Power Supply
From: Clay Autery <KY5G@montac.com>
Date: Wed, 25 Mar 2020 15:42:12 -0500
List-post: <mailto:rfi@contesting.com>
I have XP Power Model AEB100PS48, 48vdc switching PSUs (resemble a laptop PSU) that are pretty stinkin' quiet.  Don't even HAVE to have torroids on the input/output.

I loathe switchers, but I didn't want to buy a 48vdc analog supply just to power one component (an old TELCO GPSDO that I am modding to work outside the rack.)

73,

______________________
Clay Autery, KY5G
(318) 518-1389

On 03/25/20 10:50, Jim McCook wrote:
My neighbor is throwing RFI out that affects 15 and 10m bands.  We finally traced the source to a Unifi US-8-60 internet switch that uses a separate 48v power source.  Naturally it's a dreaded switcher, so he needs either a clean switching supply (if it exists!) or a analog supply.  I'm unable to find anything resembling a wall wart style.  Can anyone suggest a solution? These internet switches are showing up much faster now and represent a big potential problem, compared to the typical router operating at 5v with the 14.029 noise.  Jim W6YA

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