Circuit signal can be divided into digital signal and analog signal. Different signal needs different measuring instrument to analyze. So more and more users choose the mixed type oscilloscope. 　To meet uses’ needs, Zeroplus provides DSO stacking function. For Zeroplus LAP-A Series and LAP-C Series, they can support the stacking with Tektronix 1000, 2000, 5000 Series and GwInstek GDS-1000A Series. Meanwhile, LA can capture the signal from the oscilloscope through conneting with PC and display the captured analog /digital signal on the software interface. In this way, users can synchronously analyze digital/analog waveform, which can achieve the mixed signal analysis. 　Users must make sure the LA software is V3.11 version or higher firstly; If not, please login the Zeroplus Website(http://www.zeroplus.com.tw/) ->Instrument Division ->Traditional Chinese->Technical Support ->Download to update the software. 　When using the stacking function of LA and Oscilloscope, users need to install the special software of oscilloscope manufacture to connect beforehand, they can download as their necessary.