Don , That may be peak to peak voltage squared decided by 400 for a 50 ohm 
load.
Thanks 73 Ken K5DNL

    On Thursday, June 20, 2019, 9:30:46 AM CDT, Bob McGraw K4TAX 
<[email protected]> wrote:  
 
 Here is a paper on the topic. This covers the correct procedure. 

http://www.eng.auburn.edu/~troppel/courses/TIMS-manuals-r5/TIMS%20Experiment%20Manuals/Student_Text/Vol-A1/a1-12.pdf

73
Bob, K4TAX


Sent from my iPhone

> On Jun 20, 2019, at 8:38 AM, John Oppenheimer <[email protected]> wrote:
> 
> Using DL1 with Oscilloscope to measure KX3 SSB RMS power:
> 
> https://www.kn5l.net/ssbpower/
> 
> Question, is this technique correct?
> 
> John KN5L
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