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Help with oscilloscope newb ?

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crazyjohn

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Help with analog oscilloscope ?

Ive gotta hameg hm 203-7 oscope and have been scratching my head reading the manuel trying to do the following but been unsuccessful.When the oscope triggers on a ac voltage going above a set threshold voltage which could occur randomly at any time i want the waveform displayed during that trigger event to remain on the viewer indefinitely until another event occurs long enough so that i can take readings.For example if i hook the probe to the output of a electret mic and i generate a noise near the mic i want to take peak to peak measurements from the oscope but it happens all to fast.Any ideas or am i asking too much of a analog scope ?
 

Long story short, you can't get there from here.

With an analog scope, you can only see things that are repetitive in nature on the screen for long periods of time. Repetitive signals continually "redraw" themselves, so they look like they are standing still on the display. To stop time on an o-scope, you need one with digital storage. These scopes sample the data, save it in a memory buffer, and then write that data to the screen. When you tell it to stop time, it simply writes out the data in the buffer to the screen, until you tell it to do otherwise.
 
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