Products > Test Equipment

Cheap bode plot device...

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David Aurora:

--- Quote from: Fungus on June 24, 2022, 10:33:51 pm ---
--- Quote from: bsas on June 24, 2022, 09:18:50 pm ---I also have a Analog Discovery 2. No idea if it can do bode plot (it should, I think)

--- End quote ---

It can, and the Digilent software will even do it via your sound card at audio frequencies.

--- End quote ---

Did not know Waveforms worked with other hardware, will be trying this at work today! That could be super handy for callouts to studios

EDIT- Actually... thinking about this I think I DID know this, but had issues with it and didn't go any further. Will try again either way

Warpspeed:
@Mawyatt
Yes indeed, many ways to skin a cat.
From the completely nerdy software/mathematical approach, to the down and dirty nuts and bolts hardware approach.

I am at home and retired a long time ago, plenty of time on my hands, and this project is mainly a time filler, something I have been thinking about doing for a very long time..

Also, have a lot of hardware here, remnants of a lifetime of messing about with home brew amateur radio. So the tracking filter approach has a lot of appeal, and is something I feel very confident of achieving good results with.

I also have quite a few very nice 100Khz vacuum mounted crystals of Russian origin, that are perfect for a pair of matched super sharp bandpass filters.
Its all coming together quite nicely too, and there have been far fewer problems than I expected.
Its becoming a rather interesting project.

JeremyC:

--- 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)?

--- End quote ---
If you are working with audio, you may find interesting links below:
  - RightMark audio analyzer, https://audio.rightmark.org/index_new.shtml
  - REW, https://www.roomeqwizard.com/


--- Quote ---I also have a Analog Discovery 2. No idea if it can do bode plot (it should, I think) but it is annoying to have to have a laptop every time I want to use it.

--- End quote ---
Yes, the AD2 has Bode plot option, in the WaveForms it’s called “Network”, check the link, it may give you some ideas.

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