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sinc function

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frank88
Posts: 2
Joined: June 29th, 2018, 11:33 am
Country: United Kingdom

sinc function

Post by frank88 » June 29th, 2018, 11:35 am

Hi

Im trying to get an square in frequency with the signal generator, so I am trying to use the sinc function. I connected it to the spectrum analyzer and get a list of peaks with a distance between them equal to the frequency that I choose for the sinc function at the signal generator.
I have no explanation for that, could you help me to understand it please? what should I do to get a square function?

thank you very much!

David N
Tektronix Applications
Tektronix Applications
Posts: 525
Joined: July 31st, 2008, 8:26 am

Re: sinc function

Post by David N » June 29th, 2018, 4:15 pm

I am not sure I understand your questions entirely. You indicate using the Sinc function, but then needing a square wave signal. The sinc function does not create a square wave but creates sync pules based upon the set frequency. That is what you are seeing on the spectrum analyzer.

You may want to send in a support request and one of our AE can work directly with you regarding your questions and application. You can submit your request at: https://www.tek.com/support

frank88
Posts: 2
Joined: June 29th, 2018, 11:33 am
Country: United Kingdom

Re: sinc function

Post by frank88 » June 29th, 2018, 4:43 pm

I am creating a sinc function (in time) and I need a square shape (in frequency). But what I get is a list of Dirac deltas similar to https://upload.wikimedia.org/wikipedia/ ... mb.svg.png where the T in this case is the frequency that I set for the sinc function

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