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Typical RF sig gens behave as below:

A 3dB change is a change of a factor of about 1.41 in voltage on a typical signal generator (not a change factor of 2)
A 10dB change is a change of a factor of about 3.16 in voltage (not 10)
A 20dB change is a change of a factor of 10 in voltage (not 100).
A 30dB change is a change of a factor of about 31.6 in voltage (not 1000).

[QUOTE="G0HZU, post: 415253, member: 19109"] Typical RF sig gens behave as below: A 3dB change is a change of a factor of about 1.41 in voltage on a typical signal generator (not a change factor of 2) A 10dB change is a change of a factor of about 3.16 in voltage (not 10) A 20dB change is a change of a factor of 10 in voltage (not 100). A 30dB change is a change of a factor of about 31.6 in voltage (not 1000). [/QUOTE]

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