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Author Topic: Oscilloscope / Spectrum analyser  (Read 2644 times)

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jupiter1991

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Oscilloscope / Spectrum analyser
« on: April 12, 2008, 19:28:21 PM »
I have a question about an oscilloscope and a spectrum analyzer.
They both show a graph of the input signal correct? So what is exactly the difference?

Thank yuo

kam

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Re: Oscilloscope / Spectrum analyser
« Reply #1 on: April 13, 2008, 15:12:26 PM »
Oscilloscope would show you the waveform that is in the input. For example if you connect it in your house mains, you will get a sine wave.

But if you speak into a mic and connect an oscilloscope, you will only see a mix of frequencies, distortion lines and not very clear results.

For this reason you need a Spectrum analyzer. The S.A. will analyze the frequencies and it will show you a graphic with the amplitude of each frequency.

These are 2 completely different tools.

jupiter1991

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Re: Oscilloscope / Spectrum analyser
« Reply #2 on: August 21, 2008, 20:20:24 PM »
Thank you very much kam!