Engineering consultant Frank Hertel outlines a method of measuring an inductor’s value using only an oscilloscope and a signal or function generator.

A method that employs a single supply voltage rail to produce a buffered signal whose frequency can be varied over a range from 10Hz to 1MHz.

A Pentagon watchdog report has found that Defense Secretary Pete Hegseth put U.S. service members at risk when he used the Signal messaging app to discuss a military strike in Yemen earlier this year.

Secretary of Defense Pete Hegseth risked compromising sensitive military information, which could have endangered American troops and mission objectives, when he used Signal in March of this year to ...

Privacy-focused messaging app Signal announced on Monday that it’s introducing a feature that allows users to back up their text conversations for free, along with ...

"Our results don't solve the mystery of the Wow! Signal, but they give us the clearest picture yet of what it was and where it came from." When you purchase through links on our site, we may earn an ...

A messaging service used by former National Security Advisor Mike Waltz has temporarily shut down while the company investigates an apparent hack. The messaging app is used to access and archive ...

Defense Secretary Pete Hegseth reportedly directed a desktop computer in his Pentagon office be installed with the messaging app Signal, adding another layer to the controversy around his use of the ...

Signal, the most secure widely available messaging app, has become a go-to resource for journalists, leakers and other people concerned about privacy. But it’s not infallible. And its shortcomings and ...

Signal and WhatsApp are both end-to-end encrypted messaging apps, but they differ in ownership and data collection practices. WhatsApp, owned by Meta, collects metadata on users, while Signal, a ...

US government officials discussed war plans in a Signal chat, then blamed the leaks on the messaging app. But Signal and other encrypted apps are secure—as long as you use them correctly. I review ...