New Hantek DSO2X1X models?

[Aldo22]

Hantek is good, maybe best p/p but it suite for student or amatuer user.
...
It depends on your needs and how you use the device.

Exactly!
I wouldn't even call myself a serious amateur.
I got my first small oscilloscope (Zeeweii) in January this year and have had a lot of fun with it so far.
I also bought a TinySA and a NanoVNA and that opens up a new world as well.
But for me these are toys and they are fascinating in themselves.
I don't need them for a specific purpose or to earn money, just to play and learn.

I think that the Hantek with its relatively many features will also keep me busy for a while. Maybe I will even try to "improve" it. 
I might not dare to do that with a "good" Siglent or Rigol device. So that's fine with me!

As you can see, there are different perspectives and needs and although I could afford a better device, it wouldn't be right for me at the moment.

[copper2000]

hello of the whole thread I read, but nowhere did I come across whether anyone tried to increase the AWG frequency set ?, generator, thank you for the answer

edit, does a man get a reply here? Or is the forum dead? 

im sory im translate gooogle

[vistorik]

23.08.31 is a newer software version, not released yet!

David, you can get this new software version from 4pda.to/forum: https://4pda.to/forum/dl/post/29467623/dso3kb_20230906.upk.zip

[Aldo22]

David, you can get this new software version from 4pda.to/forum: https://4pda.to/forum/dl/post/29467623/dso3kb_20230906.upk.zip

My Russian is not very good, but 404 probably means "not found" there too.

[vistorik]

David, you can get this new software version from 4pda.to/forum: https://4pda.to/forum/dl/post/29467623/dso3kb_20230906.upk.zip

My Russian is not very good, but 404 probably means "not found" there too.

You do not have access to download files from this forum without registering. David has it.

[Aldo22]

David, you can get this new software version from 4pda.to/forum: https://4pda.to/forum/dl/post/29467623/dso3kb_20230906.upk.zip

My Russian is not very good, but 404 probably means "not found" there too.

You do not have access to download files from this forum without registering. David has it.

OK, but the message should then read "401 Unauthorized".

[DavidAlfa]

Yeah you need to be logged on to download!
Edit: Attached. It's actually 23.08.31 version.
Will update the faq/Drive tomorrow.

[eospss]

My English is not good, so I used Google Translate:
I successfully modified 2c15 into 2d15. However, other problems arose during the modification process. I disassembled the device to determine if any relevant original parts were missing. However, after installing it back, I found that the CH1 reference voltage drifted greatly after the machine was cold-started. I tried to calibrate the device but the system reported error code 510d1. Just wait until the machine warms up and restart it a few times.
vbase is constantly changing, the highest is 90v, the lowest is -400mv.
CH2 is normal.
Did I break something while disassembling the device?

[DavidAlfa]

Did you change FW version?

[eospss]

No, I just upgraded the software to the latest one. fw is always 3202.

[nokin]

Yeah you need to be logged on to download!
Edit: Attached. It's actually 23.08.31 version.
Will update the faq/Drive tomorrow.

Hi, do you see any improvement on this version ? 

[morgan_flint]

hello of the whole thread I read, but nowhere did I come across whether anyone tried to increase the AWG frequency set ?, generator, thank you for the answer

edit, does a man get a reply here? Or is the forum dead? 

im sory im translate gooogle

I've been here for a long time and, as far as I remember, there's no way to increase it

[Z_E_V_S]

Hi.
Partially corrected the signal display error at a memory depth of 400k or more.
Previously, when switching from 50ms/division to 100ms/division, the signal was not displayed correctly.
With the new software, this problem has been fixed, BUT if after switching to 100ms/division, press the Start/Stop button and again the Start/Stop button, the signal is not displayed correctly again.

[DavidAlfa]

You could increase the frequency by making a custom waveform in the pc software...

[Aldo22]

So now I am also one of the Hantek victims... 

I think whether the device is worth the money depends on the money.
I paid CHF 123.14 (~$130). Everything included (postage, paypal fees,...).
That's the price range of an Owon hds272s for example.

I did a test with the TinySA to see how far the 100MHz version (without modifications) goes and if there is a difference to the 150MHz version (except for the probes).
Strangely enough, the Vpp tends to increase up to 150MHz.
This could also be due to the TinySA or the cable, or simply because I've only had it for half an hour.
It can trigger and measure up to 250MHz, although the end can be felt here.
I can't imagine that the 150Mhz version works better.
So not bad for the price.

And it is absolutely silent and starts up quickly! A dream! 

P.S. The shop is worth recommending. Very pleasant and communicative.

[Stealth_Fighter]

Hello. I purchased a new oscilloscope DSO2C10, firmware 3205 - after purchase I backed it up (with DSO Flash) and installed the mod 2D15. He worked for 20 days. Yesterday, when analyzing I2C (3.3V) signals, it stopped responding to buttons. The buttons continue to beep when pressed. I read earlier about the device freezing due to overheating, so I turned off the oscilloscope... But after cooling for 12 hours, everything is the same - it turns on, initializes, test blinks and that's it... Sometimes (at the moment of switching on) I manage to press a button - then I can go to the menu and perform actions within the menu for a long time, after exiting the menu there is no reaction. The buttons continue to beep when pressed. When connecting via USB with the standard program, there is no connection, but there is a USB icon on the oscilloscope... Tell me, please, which way to look? Thank you.

[Aldo22]

I know I may be a bit overcautious, but this is the first time I've to deal with an *.upk file.
I want to run the backup builder.
In all the descriptions I read "Run system update".
But I don't have anything that says that.
I have a menu item "Update Firmware".
Is that it?
Sorry, I know it sounds ridiculous, but I don't want to make a mistake before I have backed up everything.

[DavidAlfa]

Yes!

[Aldo22]

Yes!

Thank you very much!
That worked perfectly!

The AWG is now also working. 

Edit: So, now I think I'm done with the setup and backups for the time being.
Overclocking, factory reset daemon, fonts.... all done.
You can tell it's not a professional tool, but I find it quite exciting for the price.

The built-in AWG makes a very stable and nice 10MHz square wave. I like it.

[Aldo22]

I did a few tests with my new Hantek. Of course the model is no longer brand new, but perhaps there have been improvements compared to previous versions?

There were complaints about the noise level.
I can't find anything special about mine.
At 5mV/div I see almost no noise and at 2mv/div I can see that it is alive. 
For me it is not a "show-stopper". (See attached image noise5mV.png, noise2mV.png)

The cheap device doesn't fail even at frequencies that are much higher than the bandwidth.
It jitters and fluctuates and the amplitude drops, but it doesn't show any "fantasy frequencies".
See 200Mhz, 250Mhz from TinySA. (attached image 200Mhz.png, 250Mhz.png)
That's impressive!

I also found most of the measurements OK for an oscilloscope.
I have the following results with the tools at my disposal.

1kHz Square Wave:
5V -> 4.96Vpp
2V -> 2.08Vpp
1V -> 1.04Vpp
500mV -> 504mVpp
100mV -> 104mVpp
50mV -> 52mVpp
40mV -> 39mVpp
10mV -> 10mVpp
5mV -> 4.96mVpp (See attached Image 5mV.png, that's with 50Ohm Load Resistor, so half of it)

Signal from Si5351A with descending frequencies. Because the amplitude is not adjustable, I used a 20dB attenuator.
162MHz -> 610mVpp
100MHz -> 620mVpp
80MHz 560mVpp
50MHz -> 570mVpp
30MHz -> 540mVpp
10MHz -> 538mVpp
1MHz -> 516mVpp
The signal of course goes from square wave to sine wave above 50Mhz, but the measurements don't seem shockingly deviating to me.

What I really don't understand is the amplitude measurement with heavy ripple/overshoot.
Actually the Si5351A should output 3.3 volts amplitude.
The measurement with the Hantek shows a heavy overshoot (See attached image VAmp.png)
I don't think that's a problem per-se, but the amplitude (Vamp) should be much lower than the Vpp?
Visually it's correct too, but the specified measurement value (Vamp) isn't correct?
If you subtract 1.2 volts, it would be better, right?

Strangely enough, my even cheaper Zeeweii seems closer to reality. The attached Image shows exactly the same input signal.
(See zeeweii.png)

Is it a (another) bug?

[copper2000]

hello, me how much to frekvenci the entrance to the osciloscopes, i.e. max the entry rate thank you
what I skated so my oscloscoploscoped to 300Mhz you know no more 

im sory google translate

[Aldo22]

hello, me how much to frekvenci the entrance to the osciloscopes, i.e. max the entry rate thank you
what I skated so my oscloscoploscoped to 300Mhz you know no more 

Is this question addressed to me?
Unfortunately, I don't understand a word. Could you rephrase the question?

[Aldo22]

Some more measurements.
This time DC

10V -> 10.3V
8V -> 7.98V
5V -> 5.04V
2V -> 2.03V
1V -> 1.02V
0.5V -> 0.506V
0.1V -> 0.999V
0.0543V -> 0.0543V
0.0242V -> 0.0244V
-1V -> -.995V
-5V -> -5V

I think this is acceptable for an oscilloscope.
Make sure you choose a suitable V/Div range.

So far no lockups except when testing overclocking.
Runs stable with 696/384 (28/15)

[DavidAlfa]

A scope is not a DMM and shouldn't be treated as such.
This tests make no sense.

[Aldo22]

A scope is not a DMM and shouldn't be treated as such.
This tests make no sense.

You're right, but since it has a "DVM" window, it kind of pretends to have that feature.

At least I'm not making a video about it.