At one point the device calibrated correctly on Windows 7 BUT I have not gone back and tried that since upgrading the computer to Win 10. I currently do not have the software installed on a windows 7 machine. I will do some testing tonight and capture some video to send to you. I doubt Windows 10 had anything to do with the calibration issue. I would think that is all contained inside the 3204A.
Here is a dropbox link to the video. It shows the entire calibration sequence including moving the probe from the ground to the 2vp-p ref signal once the cal is complete. You will see the square wave on the screen show about 6vp-p. You will also notice at about 2:45 in the video, the application locks up. Unplugging the USB and re-plugging it recovers from the lock up. I have experience this issue ever since I received the unit. It that normal? The application also tends to lock up if I grab the trigger voltage symbol on the right side of the screen and slide it. The software version here is 1.0.8.
Dir sir,
I want to send a software to you. Please give me your email.
Please install the latest software to try.
If not, please change a Win7 computer to try.
By the way, please unplug the probe to do self calibration.
Dir sir,
For calibration, disconnect any probes or cables from the input connectors.
About the latest software, you can send a mail to support@hantek.com to get.
Please test it on win7, convenient for us to find the reason. Thank you for your cooperation.