Pulse density modulation (PDM) is a compact digital audio format used in devices like MEMS microphones and embedded systems. This compact primer eases you into the essentials of PDM audio. Let’s begin ...

At the heart of many precision measurement systems lies the delta-sigma converter, an architecture engineered for accuracy.

Veterinary ECGs face added challenges, as muscle tremors, shivering and motion artifacts can easily dominate the signal.

Filled with the top stories to start your day, and emergency news alerts.

The FBI hacked into Signal group chats used by immigration activists who were watching court proceedings in New York City, according to a report. The documents claim that the FBI characterized the ...

I review privacy tools like hardware security keys, password managers, private messaging apps, and ad-blocking software. I also report on online scams and offer advice to families and individuals ...

The current issue of SIGNAL Magazine is available as an AFCEA member benefit. Nonmembers can subscribe. The current issue of SIGNAL Magazine is available digitally as a benefit of membership in AFCEA.

Cellular signal boosters use big antennas to improve the coverage in your home or other property. These are the top signal boosters for apartments and houses. I’m one of PCMag’s mobile writers. That ...

We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› By Joel Santo Domingo Joel ...

If you aren't willing to haul around a heavy SLR or mirrorless camera but still want something better than a smartphone, check out the top point-and-shoot cameras we've tested. Images, and the devices ...

Though credit cards offer a plethora of perks like welcome bonuses, access to airport lounges and rewards on everyday spending, there are some downsides to holding a credit card, like paying late fees ...

Betsy began her career in international finance and it has since grown into a comprehensive approach to journalism as she's been able to tap into that experience along with her time spent in academia ...