DSO4202C 21MHz sinewave average mode ampitude flutters

wjw · Post time 2019-9-25 09:00:01

Edited by wjw at 2019-9-25 09:00

I have a DSO4202c with software version 3.50.0(190325.0).

If I put it in Average mode when looking at a 21 MHz sinewave, the amplitude "flutters".  I think this is a software bug because I don't recall that it di this before I upgraded the firmware to 190325.0.

Other settings
   sec/div: 40.0 ns
   Type: Real Time
   volts/div: 5.00V
   input: on Ch.1

wangshuang · Post time 2019-9-29 16:50:25

please downlown the latest firmware in Hantek homepage and update the system.
http://www.hantek.com.cn/en/ProductDetail_3_4163.html

Sead · Post time 2019-10-2 17:58:32

Hi wjw,

Did you pereformed an upgrade to a new firmware? In my case the upgrade didn't help.

Regarde, Sead