To send a screen image to a PC, you must use the oscilloscope's file manager. I found the file manager very unintuitive to use, and it took several tries to figure out how to operate it. Communication cables are also difficult to plug in. You must press the connector release button to plug it into the socket. Even so, the connector must be shaken to fit. You may damage the cable card if you insert it too hard.In addition, the molded communication and power connector cover keeps popping up, but it's attached to the unit, so there's no way to loosen it.