[Elecraft] (ot) noise reduction resources

[Jim Brown]

On 4/5/2024 12:59 PM, Robert Strickland via Elecraft wrote:
> The screen shot of the noise is posted on QRZ.com. This link will get 
> you there.
> 
> https://forums.qrz.com/index.php?threads/noise-reduction-resources.908913/

The thin vertical lines look like they're coming from some piece of 
electronics with a stable clock. The humps of noise around 21050 and 
above 21060 look like two different switch-mode power supplies.

A wider span and longer time waterfall are more useful for classifying 
the type of thing generating noise. Study the applications note in the 
link below.

http://k9yc.com/KillingReceiveNoise.pdf

73, Jim K9YC