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I think I like Roger Russel
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<blockquote data-quote="Timber_MG" data-source="post: 17195" data-attributes="member: 18"><p>Hi Norval, thanks. The effects on the TS (specifically Qes) you measure are within measurement error (or that of SW curve fit) of those explained by adding a series resistance (i.e. down to series resistance of your cable run). I expected the diff in Re to be a little lower.</p><p></p><p>Seems like you did a good job of calibrating your jig. What sound card are you using?</p><p></p><p>Reason why I asked to see the post was becasue with SW many people will claim proper setup but if you look at a simple electrical measurement you will see all sorts of artefacts. I remember having erratic problems with repeatability with my first cable jig until I built the wallins and those errors tended to show up in the last octave.</p><p></p><p>It is also no doubt usefull for others to see the power of PC based measurement systems.</p><p></p><p></p><p>If there was significant inductance or capacitance (i.e. looking at effects that could influence measurement or setup thereof) one would have seen it in the graphs, specifically the electrical phase and good to see an unsmoothed measurement (or?)</p></blockquote><p></p>
[QUOTE="Timber_MG, post: 17195, member: 18"] Hi Norval, thanks. The effects on the TS (specifically Qes) you measure are within measurement error (or that of SW curve fit) of those explained by adding a series resistance (i.e. down to series resistance of your cable run). I expected the diff in Re to be a little lower. Seems like you did a good job of calibrating your jig. What sound card are you using? Reason why I asked to see the post was becasue with SW many people will claim proper setup but if you look at a simple electrical measurement you will see all sorts of artefacts. I remember having erratic problems with repeatability with my first cable jig until I built the wallins and those errors tended to show up in the last octave. It is also no doubt usefull for others to see the power of PC based measurement systems. If there was significant inductance or capacitance (i.e. looking at effects that could influence measurement or setup thereof) one would have seen it in the graphs, specifically the electrical phase and good to see an unsmoothed measurement (or?) [/QUOTE]
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I think I like Roger Russel
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