DDS-3X25 USB Multiprocessor Link To generate two or more channels of signals, you must work with two or more instruments. Open them in the same application window as the following picture: If connecting the instruments to oscillograph, you will see the two channels waveform as following: In above picture, you can see that the waveforms of CH1 and CH2 are not synchronized. DDS-3X25 USB User’s Guide 30