Why Your USB Signal Generator Needs a Low Pass Filter (And How to Fix It) скачать в хорошем качестве

Why Your USB Signal Generator Needs a Low Pass Filter (And How to Fix It)

In this video, I dive into a common challenge when working with lower frequency measurements using USB Signal Generators: the Square Wave problem. Most affordable USB generators output square waves, which are actually composed of the fundamental frequency plus every associated harmonic. Without "Adaptive" filtering (found on high-end, expensive equipment), these harmonics can reflect back into your measurements and skew your filter response data. In this video, I cover: Why square waves behave differently in RF testing. The phenomenon of harmonic reflection in filter measurements. How to use a Low Pass Filter (LPF) to achieve a pure sine wave. Big Announcement: I’ve spent the weekend developing a new PCB featuring two Low Pass Filters. These are going into production in March and will be shipped with our signal generators to ensure you get the most accurate results possible!