Using ADP3450 in network analyser mode, I made the mistake of using the "Relative to ref" option with "Vmrs" plotting option.
Actually, I understand it does not make sense to ask for an amplitude ratio in true units since it's a ratio...and can only be plotted as a linear or dB gain scale. And that the ambiguity come from the need to plot on the same graph, the Channel 1 in true units, whereas the other ones are asked in relative amplitude.
The attached file illustrate two measurements made with and without the "Relative to ref" option.
My question is : what is plotted when both "Relative to ref" and "Vmrs" are selected ? Is there a simple way to recover the RMS value or the Gain from measurement that have been made and exported with way)
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Xavier
Hello,
Using ADP3450 in network analyser mode, I made the mistake of using the "Relative to ref" option with "Vmrs" plotting option.
Actually, I understand it does not make sense to ask for an amplitude ratio in true units since it's a ratio...and can only be plotted as a linear or dB gain scale. And that the ambiguity come from the need to plot on the same graph, the Channel 1 in true units, whereas the other ones are asked in relative amplitude.
The attached file illustrate two measurements made with and without the "Relative to ref" option.
My question is : what is plotted when both "Relative to ref" and "Vmrs" are selected ? Is there a simple way to recover the RMS value or the Gain from measurement that have been made and exported with way)
Thanks for your help,
Xavier
testADPnetwork.pdf
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