On 12/12/2020 2:26 PM, Cyclone wrote:
At the beginning and end of the log, when you stated PEC is off, the main frequency components are 1x, 2x and 3.15x.
In the middle of the log, when PEC is on, the 1x and 2x components are well corrected and there is an added 3x component that was not there before. It indicates you probably included the 3x frequency in your PEC curve in an attempt to correct the 3.15x component, but this will not work. This will cause a beat frequency between the 3x and 3.15x components (they will go in and out of phase, causing worse PE at its peak).
I had another think on this and I see what you are getting at. At the beginning and ends of the session in question, PEC was off. In the middle it was on and recently trained. However, when I load the log into PECPrep, it loads the entire log and the amplitudes of the three signals in question are the average for the whole session so I can't tell how they compare relative each other.
Because it looks like it will be cloudy for the next decade here so I can't create another log, I'll try cutting the existing log into pieces and see if I can isolate sections with PEC on and with PEC off for analysis. Unless there is a hidden tool to do that in PECPrep?
Paul
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Paul Goelz
Rochester Hills, MI USA
pgoelz@...
www.pgoelz.com
