On Sat, Dec 12, 2020 at 12:16 PM Paul Goelz <pgoelz@...> wrote:
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?
