[RFI] 48v DC Clean Power Supply

Clay Autery KY5G at montac.com
Wed Mar 25 16:42:12 EDT 2020


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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