20230218_195730818_iOS

Simple and Cheap TDR Pulse Generator

As many people in the community I really enjoy watching W2AEW’s YouTube channel. Almost a decade ago he posted a video showing a cheap and easy to build pulse generator for time domain reflectometry (TDR), consisting of only a simple hex inverter with schmitt-trigger inputs 74AC14 and a few passive components. The schematic looks something like this: Schematic of the schmitt-trigger oscillator plus output driver ...

February 23, 2023 · 2 min · Sebastian