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mtfwalker
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Digilent Analog Discovery
mtfwalker   12/31/2016 10:54:05 PM
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Errr, what about Analog (sic) Discovery?  Scope, waveform generator, maths functions, FFT, network analyser, etc.  Good for anything up to audio frequencies.  More flexible than my Tek and cheap as chips!

Live
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Re: What about Red Pitaya?
Live   6/5/2015 9:56:28 AM
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I am also satisfied  owner/user  of Red Pitaya board.

Its $260US  now.

http://www.elektor.com/development/red-pitaya

 

Personally  I am more amazed by such variety of instruments (Osc. Signal gen, Spectrum analyzer, LCR meter and other  contributed  Instruments/Apps). For having all this instrument on that price with possibility to reprogram them to your needs it's really  nice feature.

And in fact that only web browser is needed for running all this instruments it's bye bye to "Accept - Install-No driver-Only for Windows"  and similar nightmares.

 

If they continued with development it will be ideal tool from Education to professional usage.

The community  around this device is  quite professional and growing.   

 

Ok, enough plusses.  I would like to see more profesional enclosure, enhanced user interfaces on instruments

and higher voltage ranges on the frontend. Maybe bigger acquisition buffer.

More SCPI commands...


All in all great multi-purpose device.     

BBtheEE
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Re: What should we cover next?
BBtheEE   6/4/2015 12:44:18 PM
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That's true.  It would be useful to divide the review into two categories:  stand-alone and integrated.


I've found that the ones that are integrated with scopes are pretty basic, but it can be useful to see the waveforms alongside the decode for those cases where there is a signal integrity issue or a collision.  Other than that, they just list the transactions.  The standalone analyzers typically have a much better UI...you can see more transactions, are much more readable, provide complex triggers,  can be searched and saved.


Noting whether or not they (or any of the test equipment in your reviews) are open-source would be useful as well.  I'm getting ready to go to market with my own debug tool (open-source) and I'm looking at other open-source solutions that I can incorporate into my next design.  This seems to be an area that is gaining in popularity based on what I've seen.

MeasurementBlues
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Re: What should we cover next?
MeasurementBlues   6/3/2015 8:45:43 AM
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BBtheEE,

Thanks for the suggestion of protocol analyzers. Many oscilloscopes can decode these buses, but there are more dedicated products.

BBtheEE
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Re: What should we cover next?
BBtheEE   6/3/2015 12:04:16 AM
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I'd be interested in seeing a review of protocol analyzers, specifically I2C, SPI, UART and USB.


(nice article!)

David Ashton
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Re: Other NI stuff... plus....
David Ashton   6/2/2015 5:08:35 PM
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Martin...just reread those two articles....surprisingly similar in terms of  firmware upgrades etc to get the things working properly.  The 1999 one raised a smile - FIVE floppy dsks (or one CD).    But the hardware hsa come a long way - you could concevably live with a Virtualbench on your bench (I could, but then I'm not working on cutting edge stuff).    Now you know what to buy me for Christmas :-)   Thanks again, great articles all.

MeasurementBlues
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Re: What's included?
MeasurementBlues   6/2/2015 1:09:01 PM
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@jreuter,

I feel it's my job to at least provide links to the appropriate product pages as opposed to simply providing a link to a company's home page only. That would be real rummaging.

Oscillosocpes have many specs. One can spend hours developing a comparison table and still not hit everything that everyone might want. So, we provide links directly to product pages.

If you would like to scan through the sites and report back to us your findings regarding probes, I would thank you for your time, as would others.

 

jreuter809
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What's included?
jreuter809   6/2/2015 12:01:36 PM
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You should've said something about what is included with each for the price.  For example, do they all include probes?  If so, what sort?  For the price, I'd assume these are all high input impedence models with simple passive probes when they are included, but as it is I'd have to rummage through each web site to figure all that out.

 

MeasurementBlues
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What should we cover next?
MeasurementBlues   6/2/2015 9:15:48 AM
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This slideshow is the third that we've recently posted. The other two covered handheld DMMs under $150 and 6½-digit bench DMMs. What should we cover next?
  • USB spectrum analyzers
  • EMI receivers
  • Bench oscillosocpes (which price range?)
  • Function/arbitrary waveform generators
  • RF test sets
  • VNAs (box or USB?)
  • EMI antennas
  • Datacom protocol analyzers
  • Handheld oscilloscopes
  • Anything else?

 

MeasurementBlues
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Re: How about the Analog Discovery device?
MeasurementBlues   6/2/2015 9:08:00 AM
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@jnissen,

Thanks for pointing us to Analog Discovery.



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