Hi Bob, Document Table 1, Line 7. speech = V/5*2^.5. which is same as Vrms/5. Using measured RMS ratios, Vrms=15.3, 15.3/5 = 3V, compared to measured 5.24V.
Speech is rather undefined, so not too worried about the discrepancy. My speech with no pauses is ~= Vrms / 3. Really what is being evaluated is gain resulting from speech compression. John KN5L On 6/20/19 9:29 AM, Bob McGraw K4TAX 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] > <mailto:[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 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
