RFI
[Top] [All Lists]

Re: [RFI] Sonos and RFI?

To: rfi@contesting.com
Subject: Re: [RFI] Sonos and RFI?
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Wed, 13 Dec 2017 18:06:31 -0800
List-post: <mailto:rfi@contesting.com>
Hi Eric,

HF RFI mostly couples via wires attached to the equipment. The only wire on these boxes is their AC power cable, which is 99.99% likely to be running an SMPS, which is in turn running a digital power amp. I would be VERY surprised if you don't hear RF noise from the SMPS. A serious ferrite choke on the AC cable should kill the worst of it, but there will be no fix for SMPS or digital noise radiated directly from the unit. A good design will avoid that by good circuit layout and construction.

73, Jim K9YC

 On 12/13/2017 4:03 PM, Eric Rosenberg wrote:
Being that the speakers are amplified are powered, has any Somnos owner on
this list had problems with RFI?


_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
<Prev in Thread] Current Thread [Next in Thread>