On Sunday, 13 December 2015 11:58:12 UTC, Andrew Gabriel wrote:
In article ,
"Brian-Gaff" writes:

Two devices bought this week. Both work OK but the problem is that their
power supplies being of the switch mode kind push out lots of annoying RF
at frequencies between 100khz and around 20mhz. One of my hobbies is

Replcement wall-warts are easily and cheaply available.
You may even have a suitable one laying around.

Be aware that all new ones are switched mode these days. Get an old heavy one.


I may ask the company if they know of a source of old fashioned psus for it
as it has a very tiny right angled plug on the end of the wall wart wire.
Life is just getting very depressing when you consider how long we have
been making switch mode devices, surely we should expect better by now!

they're better in that they're cheaper.

Another option might be a better radio aerial, so the radio can run
with the AGC lower, and not amplify the interference so much.

or put the PSU in an earthed biscuit tin, with ferrites & caps on in & outputs.


NT