[Elecraft] K3 with switching power supply??

[Jim Brown]

On Thu,2/16/2017 5:04 PM, Jack Colson wrote:
> Ii have been using the Astron SS-25M for 7 years with my K3 (s/n 11xx) and notice no issues with noise.  The same is true with my VHF and UHF transceivers.


Whether or not you hear a noise source depends on the nature of THAT 
source, in what frequency range it produces noise, its proximity to your 
antennas, and how much other noise is present in your environment.

73, Jim