More and more smartphones ship with display notches these days, and not all of them offer software solutions to hide those notches, but there’s an app for that now, and it’s called ‘Nacho Notch – ...

Tracking notch filters find use in harmonic-distortion analyzers; they also can remove heterodyne noise from ham-radio systems. A conventional tracking switched-capacitor notch filter relies on a ...

Gordon Gottsegen is a tech writer who has experience working at publications like Wired. He loves testing out new gadgets and complaining about them. He is the ghost of all failed Kickstarters. The ...