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Cheap bode plot device...

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bsas:
OK, sorry for my ignorance, how can I do it with the AD2?

Fungus:

--- Quote from: bsas on June 24, 2022, 11:51:37 pm ---OK, sorry for my ignorance, how can I do it with the AD2?

--- End quote ---



(LMGTFY)

David Hess:

--- Quote from: bsas on June 24, 2022, 09:18:50 pm ---Can you guys recommend any cheap device that can do bode plotting for audio frequency (20Hz-20kHz)?

I currently have my all time favorite Rigol DS1054Z fully "unlocked" and I have a cheap 15Mhz signal generator (Seesii something, but it clearly looks like a rebranded FY6600) but it is very annoying and hard for me to make bode plot with those...
--- End quote ---

Isn't it enough to have the automatic measurements on the Rigol DS1054Z?  When drawing the bode plot by hand, it is useful to know that the slope of the dB/octave line is proportional to phase.  I make amplitude measurements at increments of 45 degrees.

Fungus:

--- Quote from: David Hess on June 25, 2022, 02:55:09 am ---Isn't it enough to have the automatic measurements on the Rigol DS1054Z?  When drawing the bode plot by hand, it is useful to know that the slope of the dB/octave line is proportional to phase.  I make amplitude measurements at increments of 45 degrees.

--- End quote ---

What people need is a better signal generator. Back in the old days they'd have a big dial and it was easy to sweep the frequency up and down and see any dips and troughs on the oscilloscope. Now it's all buttons and rotary encoders, AWG this, waveform that... and it doesn't work any more.

bsas:
To be fully honest I am still quite a beginner and learning. So, doing those stuff "by hand" or doing some clever stuff like the Youtube tutorial gets me more confused than I would like to admit :(... I know it is my fault, but, well, I need to be honest with myself :D

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