EST observations (kinda long)

[Tedscj at aol.com]

In a message dated 2/23/99 1:34:06 AM Eastern Standard Time, Tedscj at aol.com
writes:

> 
>  What I saw:  I am going to try to represent what I saw with text.  I hope 
> this
>  works.
>  
>  Pretend that the "I"s are shaped like 'cone shaped hats', they are spikes 
> that
>  go up or down.
>  
>  RPM Reference Pulse from module to ECM:
>  
>  at @1200 RPM
>  
>  ________I_________I_________I_________I
>     I         I         I         I
>  
>  at @ 3000 RPM
>  
>  ___I___I___I___I___I
>   I   I   I   I   I
>  

>  And the EST signal from ECM to module:
>  
>  at @1200 RPM
>  
>  ________I________I________I________I
>      I        I        I        I
>  
>  at @3000
>  
>  ___I___I___I___I___I
>  I   I   I   I   I   I
>  
>  
>  Next come the assumptions:
>  First, I am assuming the upward spikes represent the 'rising edges' and the
>  downward spikes represent the 'falling edges' that you would see on a
scope.
>  
>  Ex.
>  
>  ____I____I____I____I   on my tape recorder
>   I    I    I    I
>  would be:
>  -]__[-]__[-]__[-]__[   on a scope
>  
>  Does this make sense?
>  


Well, my ASCII drawings didn't come out right.
If your interested, here's a JPG of a drawing I made of what I saw:

http://members.aol.com/tedscj/EST.JPG

Ted