Products > Test Equipment
Is my hantek DSO2C10 bad/inaccurate?
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powerstroke7.3:
This is weird. I get a sinewave when i put my finger on the probe. A perfect  sine.
Heres the clip of what its doing
https://youtu.be/6-E48DbSndc
ataradov:
I doubt any low end scope would be useful for anything radio-related anyway.

Again, from what you shown so far your scope does exactly what it should do. Any other reasonably priced scope would behave the same way.
pcprogrammer:
Yes you can restore it to the original. Check out the threads about the hantek on how to do it.

https://www.eevblog.com/forum/testgear/hacking-the-dso2x1x/
https://www.eevblog.com/forum/testgear/new-hantek-dso2x1x-models/
https://www.eevblog.com/forum/testgear/hantek-dso2x1x-firmware-updates-and-best-use-practices/

ataradov:
The frequency you see is 60 Hz from the mains. This is normal.

On the battery measurement you likely see something similar. Change the time scale to fully see the signal.

And keep it on DC long enough to actually see something useful, don't just randomly change stuff.

Your calibration reads 5V, just like the label on the output says. The probe is overcompensated though.

Ah, I see. For the measured voltage it shows RMS value, which is approximately 5 Vpp / 1.41  = 3.55 Vrms. What do you want it to show for AC voltage? Also, it says right on the label "DC RMS".
pcprogrammer:

--- Quote from: powerstroke7.3 on August 31, 2022, 06:01:46 am ---This is weird. I get a sinewave when i put my finger on the probe. A perfect  sine.

--- End quote ---

That is perfectly normal. You are an antenna for the electric field the mains power generates.

I watched your video, but could not see how you measure mains. Be aware that measuring mains voltage is very dangerous, and can blow up your scope. Has to do with ground and of course the relatively high voltage of mains. 120V in your case can still provide a deadly blow.

You should use either a differential probe or a small transformer to bring the voltage down and provide galvanic separation.

Could not spot why the DC voltage is not measured though.

Edit: this mainly due to what ataradov also mentioned, the random changing of settings and moving the camera around so much it could cause some epileptic seizure :palm:
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