[Elecraft] Noise from KAT500?

[Steve L]

There have been several tests in QST of switching power supplies in the past - including analysis of RF noise they create which was actually scary.  Some are better than others, but all generate RF noise.  

I second the vote for non-switching (i.e. linear) supply from Astron (or equivalent) and eliminating all of the “wall wart” style supplies you can.

Steve
AA8AF

> On Dec 3, 2023, at 2:41 PM, G4GNX <g4gnx at g4gnx.com> wrote:
> 
> Then purchase a 12V PSU from a reputable Ham Radio dealer, who is unlikely to sell you a noisy one.
>