Can someone help what does this waveform means or how to get it

[Toolofcortex]

I dont care and I know you are lying.

My mahcine I will get myself once I decide to get off my ass and make it.

And copying you is out of the question, I will make my own machine before I copy you.

[justawatt]

I dont care and I know you are lying.

My mahcine I will get myself once I decide to get off my ass and make it.

And copying you is out of the question, I will make my own machine before I copy you.

Okay assssssss

[justawatt]

Save this photo.
I will delete this photo 24 hrs from now

[Toolofcortex]

And you probably copied it. Possessions dont impress me nomore.

No matter what you have you are not better than Federer.

[citfta]

Hi justawatt,


It is best to just ignore the trolls.  That way they have no excuse to reply and clutter up the thread with their nonsense.


I believe that waveform is fake.  If you are familiar with the way a scope works the beam is moved from the left to the right and the amplitude of the signal moves the beam up and down.  This is the normal way a scope works so it doesn't normally move backwards.  So the signal you see is not from the normal use of a scope.  In order for the signal you show to be shown on the scope screen the beam has to move backwards during part of the cycle.


In order to get the beam to move backwards you have to apply a signal to the horizontal control of the beam at the same time you apply a signal to the vertical control of the beam.  Most modern scopes do allow you to do this but it is certainly not the normal way to use a scope.  Also if you look closely at the two traces you will see they are actually the same trace with the lower one just being larger.  It is probably larger just because the gain for that trace is turned up higher.


After thinking about this some more I am still convinced the signal is faked.  Let's think about what kind of signal could move the beam horizontally like in the screen shot.  The horizontal signal would have to start out with a negative value in order for the beam to start at the left side of the screen.  Then that value would reduce slightly to move the beam towards the center but then it would have to increase a small amount again to move the beam back to the left slightly and then reduce again to move the beam back towards the center.  This change in values would have to continue until the beam reached the center of the screen.  At that point the horizontal signal would have to start increasing with a positive value to move the beam to the right of the center of the screen but would also have to reduce the positive value to move the beam back toward the center of the screen and then of course keep repeating the process until the beam reaches the far right of the screen.  And then of course the horizontal value would have to suddenly go back to a negative value to restart the trace back on the left side of the screen.  I have worked in electronics for over 50 years and I know of no kind of circuit that could produce those kind of values for the horizontal signal.  That is why I am convinced that supposed scope signal is fake.


If you have a link to a video showing how they supposedly produced that scope shot I would certainly like to see it.


Respectfully,
Carroll