[CQ-Contest] 12V 30A Switching Power supply recommendation?

[Jim Brown]

On 11/18/2024 5:12 AM, Vytenis Sciucka wrote:
> ...and noisy!  Tested it personally. Not recommended.
> Now usinghttps://www.universal-radio.com/catalog/hamps/4912.html So far,
> so good.
> Although little activity on 80 and 160m.

Thanks, Vytenis. I don't trust most recommendations of product types 
that are often (almost always) noisy, simply because those making the 
recommendations are so surrounded by high noise levels that they don't 
notice the noise from the noisy product. And here in the US, the average 
home has several dozen noise sources. We hear our own, and those of our 
neighbors.

There is no enforcement of RF noise regulations by our government (FCC), 
after that agency was gutted 40 years ago in the name of "small government.

There ARE good ways for us to do our own tests. They are listed in my 
applications note on finding and killing RX noise.
http://k9yc.com/KillingReceiveNoise.pdf
And this slide deck from Visalia.
http://k9yc.com/KillingRXNoiseVisalia.pdf

73, Jim K9YC


73, Jim K9YC