[Elecraft] K3S IMD Questions

[Al Lorona]

Exactly right, Wes. The 10 dB rule-of-thumb is a *minimum* and it would be better if the measuring instrument were more than 10 dB better.

I'm not sure that the Flex radio originally mentioned meets that phase noise requirement. If its phase noise is on par with the K3's then it's not suitable for an accurate phase noise measurement. Depending on the numbers, you *might* be able to say "A is better than B," but you couldn't say how much better with any certainty.


Al  W6LX

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> You probably also know that the phase noise of the analyzer should 

> be, as a rule of thumb, 10 dB better than the device you're measuring.