Hantek DSO8060 DC coupling problem after firmware update

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  • japlytic
    Badcaps Legend
    • Oct 2005
    • 2086
    • Australia
    #1

    Hantek DSO8060 DC coupling problem after firmware update

    After I updated the firmware in my Hantek DSO8060 handheld oscilloscope meter, the DC coupling for both channels causes an overrange condition even with no signal applied and 0V DC offset set via the front panel controls, but AC coupling works OK.
    I then tried a factory reset without success, and then I tried the automatic recalibration routine which fixed this problem.
    In my theory, it appears a newer firmware version uses a different structure for the calibration constants (or updating the firmware has cleared them).

    This could also affect other units (Hantek and certain others) too.
    My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics.
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