I recently noticed this blog post by WB4SON:

https://wb4son.com/wpblog/?p=3784

As he notes in the post, the phenomenon he discusses is not a flaw of the K3S, but rather an intentional design feature included to keep unwanted phase noise of the DDS as low as possible. But apparently it's an effect that would need to be taken into account by anyone interested in very precise frequency measurement at the sub-Hz level.

I wonder if there are any comments here, or thoughts on managing it while doing FMT work? I just ordered a new K3S as a first-time user, and FMT (as an absolute rookie) is one area I'm interested in.

Thanks and 73,

Frank O'Donnell K6FOD







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