All Forums  GQ Electronics Forums  3. GQ EMF EF Meter RF Spectrum Power Analyzer  Does GQ EMF-390 show values that base on P(eff)?

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by frank.mathieu@GQ[/i] [br]Dear specialists I am sorry, there were errors in my formulas. I take the formulas out but my question is the same. GQ EMF-390 provides both, LF and HF measurements per second that I read out to perform analyses. Mathematically this is field strength in V/m and Power density in pW/cm² for one second. In electrotechnics it is advised to calculate average values with a root square mean and not use the arithmetic mean to get the effective value of electric power. Are measurements of GQ EMF-390 based on U(eff) and I(eff) or not? I need that information for the calculation of average values. (a) To get the average value in a time frame of 6 minutes, can I use the arithmetic mean (Sum/count of measured Values) or (b) do I have to calculate the root mean square... Square root of ( sum of squared measurement values / count of measurements ) Thank you. Have a good day. [/quote]    Insert an Image File Check here to include your profile signature.