[SADXA] AC/DC switching regulator Wall Power Adapter Noise - Survey

[W7EXG]

I plan to use a AC/DC switching regulator Wall Power Adaptor for a project
controller. 

 

Would anyone care to comment on their experience with a particularly BAD or
GOOD AC/DC Switching Wall Adapter with respect to noticeable noise generated
in the HF Ham Frequencies?

 

Typical switcher Output nose Specifications are 200mVpp in a 20MHz BW, with
switching frequencies between 24 and70 kHz. Most have EMC standards and EMC
test levels, but difficult to translate to real world RF noise in a ham
radio shack without purchase. 

 

I realize there are many Linear Regulator Wall adapter options, with
virtually no RF noise. 

 

There may be many in the group who might have a similar interest. 

 

Best 73's and many thanks for any responses. 

 

Bill W7EXG