[RFI] A note from Sangean about switching power supplies

[Howard Lester]

What jumps out to me in the Digi-Key article is this:

Also, per FCC Part 15, radiated emissions must be controlled between 30 MHz and 1000 MHz, and conducted emissions must be controlled in the frequency band between 0.45 MHz and 30 MHz. 

So, radiated emissions needn’t be controlled (by the manufacturer, I presume) at HF. Isn’t it primarily radiated emission that plagues us? 

Howard N7SO


> On Jan 9, 2017, at 11:55 AM, Cortland Richmond <ka5s at earthlink.net> wrote:
>  
> Efficiency doesn't cover RFI. See
> http://www.digikey.com/en/articles/techzone/2012/jun/understanding-electromagnetic-compatibility-standards-for-switch-mode-power-supplies