[CQ-Contest] Switching Power Supplies

[Ed Goss]

OK let's try again.

2009:

https://www.centralmiarc.com/docs/Reviews/dj175t.pdf

and 2020:

https://www.reddit.com/r/amateurradio/comments/j25i1q/qst_oct2020_four_power_supplies_tested_only_yaesu/

--Ed, N3CW--


>
> Message: 2
> Date: Mon, 11 Nov 2024 20:35:14 -0500
> From: Charles Gallo <charlie at thegallos.com>
> To: cq-contest at contesting.com
> Subject: Re: [CQ-Contest] Switching Power Supplies
> Message-ID: <678EC18A-4FA0-4953-A56F-E2B12C8D0645 at thegallos.com>
> Content-Type: text/plain; charset=utf-8
>
> No,
> My comment was more along the lines that in the quarter century since that article, I?m sure there are many new models of supply, that it is entirely possible that internally models have changed. It was really really great information on what existed 25 years ago, but how good is it on what exists today?
>
> Reading a lot of the EE trade bags, particularly over say the last 4-5 years, EMI/RFI has become a big topic for switching power supply folks, and the chip makers that now make chips specifically for power supplies have done work to help eliminate some of the issues, and heck, even the printed circuit board design software folks are putting in features to help eliminate the issues.
>
> So yes, great article on what was the state of the ham radio industry at the turn of the century, but how much it reflects today is up for debate
> --
> 73 de KG2V
> Charlie
>
> ****

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