Maybe someone could bring a function generator to the next meeting and we can 
bring our new scopes and test them out?  It would be nice to have someone 
familiar with digital scopes give me a quick primer on their use and functions 
as well as to compare the various models.

 

Sova

 

From: [email protected] 
[mailto:[email protected]] On Behalf Of Jason Barnett
Sent: Sunday, August 10, 2014 4:46 PM
To: A discussion list for dorkbot-pdx (portland, or)
Subject: Re: [dorkbotpdx-blabber] Looking for input on oscilloscope

 

Jerry, Sova and Paul,

  thank you for your input on Aliexpress and the MSO5074FG. 

 

Paul, I had not seen that thread on eevblog. He posted an update the day after 
you gave me the link, saying his unit was replaced and he has been quite happy 
with it since. While $500 is not cheap, it is within my "toy" budget, so while 
I would not be happy if it turned out to be a complete dud, it isn't going to 
break me either.

 

After all of my research and weighing the risks, I think I will go ahead and 
order this scope, albeit using a creditcard with buyer protection and a bit of 
nail biting. I was able to find it for $500 and free shipping, so if there is a 
problem and I get a refund it should be the full $500 instead of $430 + $80 for 
shipping.  This unit is a bit of an unknown, so it will be exciting to see if I 
end up with a dud, a gem or something in-between. 

 

Thanks again for everyone's help.

 

On Fri, Aug 8, 2014 at 2:30 PM, Paul Stoffregen <[email protected] 
<mailto:[email protected]> > wrote:

On 08/08/2014 12:52 PM, Jason Barnett wrote:

 

Here is the scope I am looking at buying if anyone has input on why I should or 
shouldn't buy it, I'd like to hear it 
http://www.aliexpress.com/item/-/1928114166.html

 

You've read this, right?

http://www.eevblog.com/forum/testgear/hantek-mso5074fg/

If you get one, I hope you'll bring it by a Monday meetup.  I'm really curious 
to see it.  There's so little info about this scope, like whether it does 
intensity grading and how many waveforms/sec it captures, if it does.  Reply #8 
on that thread claims to have more info, but I can't see where he got it, and 
it doesn't make much sense to me either.  He believes it captures 2000 
waveforms/sec, but the he says there's no intensity grading, which doesn't make 
much sense to me.  I do not believe any TFT LCD is that fast, so how could 2000 
waveform/sec work without rendering to intensity grading?  But this page has a 
number of screenshots that look like they might be intensity graded?

http://www.aliexpress.com/store/product/High-quality-Hantek-MSO5074FG-70Mhz-4-Channel-Oscilloscope-8-Channel-Logic-Analyzer-25MHz-Arb-Waveform-Generator/100653_1596199238.html

But those screenshots look nothing like the images on the product photos, which 
look less like photos and more like illustrations (gray in the 
illustration/photo, bright blue in the screenshot).  I couldn't find anything 
that looks like a real photo of this scope actually in operation, other than a 
splash screen, not the 'scope's actual waveform display.  So much mystery!

If $500 is a lot of money for you, I'd recommend waiting.  Early adopters can 
really suffer, especially with brands like Hantek.




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