Conceptually, radar is pretty simple: send out a radio wave and time how long it takes to get back via an echo. However, in practice, there are a number of trade-offs to consider. For example, ...

John Carlsen has more than a decade of experience testing and reviewing home tech products, with a major focus on smart home security. He earned his BS in journalism from Utah Valley University. In ...

The big picture: Open-source hardware projects rarely stray into territory dominated by six-figure, defense-grade systems, but a new radar design is attempting to do exactly that. Developed by ...