Thank you very much for your quick response and also on this very interesting video. I'll try to apply these steps and I will inform you about the given results.

I just bought a PicoScope 6304A and a software Picoscope 6 (the latest version). My goal is to exploit the performance of the PicoScope to develop an application based on the use of ultrasonic signals in my PhD project. The technical performance of the PicoScope gives high accuracy and high resoluti...