This, I have understood....but what is the purpose of doing this??? I can't understand your explanationsYour scope should have CH1 and CH2 inputs. It should also have and EXT TRIG input.
Tell us which make and model scope you are using.
Connect the 3.4kHz audio signal to any one of those three inputs.
Go to the trigger selection of the scope and select the trigger input to the one that you connected the 3.4kHz audio signal.
To learn more about oscilloscope triggering, and scopes in general, you may want to visit my YouTube channel. I have a lot of tutorial videos there on scopes, circuits, etc.thanks MrChips...I've got it!!!
Imagine a juggler juggling three balls.
You take a sequence of still photos using a high speed camera that can capture multiple frames in succession.
If you examine each frame, the juggling balls will all be at random positions.
The same thing would happen on the oscilloscope screen if the scope was not synchronized to the waveform.
Now if the high speed camera was somehow synchronized to the action of the juggler, then each frame would show the balls in almost the same position. That is, you would be able to "freeze" the position of the balls from sequence to sequence.
How could one do this? You could use the action of, say, the left hand to "trigger" the camera.
In the same way, we use the waveform (or some other event) to "trigger" the scope so that the waveform recording is in sync with the "phase" of the waveform. This results in a "stationary" view of the waveform.
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