Thank you Gary for this tip.
I actually had one of these apple adapters. I replaced the PI power supply
with these, and the noise level dropped dramatically! Very much appreciate
you recommended this as this was a quick fix. Reduced my noise floor on 80m
by 2 s-units!
73,
David
On Fri, Apr 2, 2021 at 10:40 PM Gary Johnson <gwj@wb9jps.com> wrote:
> Yes... Apple adapters are excellent. Here’s a detailed report. Other
> tested and recommended devices are also listed on my RFI page.
>
>
> http://wb9jps.com/Gary_Johnson/RFI_files/Apple_A1401_12W_USB_adapter_test_report.pdf
>
> Gary NA6O
>
> I'm wondering if anyone has had success finding a wall wart for a Raspberry
>
> Pi that doesn't make horrific RFI on HF (or really any switch mode power
> supply that isn't noisy!)
>
>
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