Don't buy any speakers with active circuitry, especially digital. Active
noise cancellation is a license for RFI. If it needs power other than the
audio, beware!
Dave - WØLEV
On Sat, Sep 19, 2020 at 11:02 PM Dave Cole <dave@nk7z.net> wrote:
> Ferrite up all leads into and out of the speakers... RFI will go away.
>
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist, RFI
> ARRL Asst. Director, NW Division, Technical Resources
>
> On 9/19/20 3:46 PM, Tony wrote:
> > On 9/19/2020 2:28 AM, Mike NA6MB wrote:
> >> Great speakers !
> >> http://www.westmountainradio.com/product_info.php?products_id=COM_spkr
> >> No RFI given and none taken. NA6MB
> >
> > Thanks for the info Mike. I noticed that they give you the option of
> > powering the speakers with the supplied AC adapter or the PC USB
> > connection.
> >
> > Curious to know if you noticed any RFI when running the PC connection?
> >
> > Tony -K2MO
> >
> >
> >>
> >>
> >>
> >> On 9/18/2020 9:10 PM, Tony wrote:
> >>> All:
> >>>
> >>> Purchased a set of USB-powered PC speakers which turned out to be
> >>> very noisy on HF. The speakers are made by Mica model PB20i.
> >>>
> >>> See:
> >>>
> https://www.amazon.com/gp/product/B07VTS62L6/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
> >>>
> >>>
> >>> Tony - K2MO
> >>>
> >>>
> >>> _______________________________________________
> >>> RFI mailing list
> >>> RFI@contesting.com
> >>> http://lists.contesting.com/mailman/listinfo/rfi
> >>
> >
> > _______________________________________________
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--
*Dave - WØLEV*
*Just Let Darwin Work*
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