Editor’s note: This book is useful for all designers who need to test or have their designs tested for emissions, radiation and susceptibility for EMC. It can also help a wide range of specialists in...

It’s been a while since my last post, but like a lot of people I took some time to reflect on the year just finished during my holiday break. Among the highlights, there was a particular moment which...

Once again, though, 802.11ac is *not* "designed to "bring HD video to the home." At best, you might say it is designed to distribute HD video inside the home, once that video has been received over yo...

Our smartphones follow us everywhere — the office, the kitchen, the couch, the bedroom — and keep us connected to the things that matter most. The idea of a (gasp!) dead zone with no connectivity is a...

Back in October 2011, EDN’s Paul Rako published Ron Quan’s Design Idea, “A super-het radio runs 5 years on a C-cell, plus a pentode radio” and it was a very well viewed and informative technical proje...

Like it or not, the insides of our bodies are becoming open books--as open as a book is when scanned by Google or Amazon, in fact. And there are seemingly as many benefits as risks. In just the...

Boeing has found a way to test wireless signals onboard its planes, using the pinnacle of aviation technology - a sack of potatoes.The aircraft manufacturer's engineers were faced with a quandary when...

Years of studies to determine whether cellphones can cause brain tumors Two scientists have now developed a magnetic resonance imaging (MRI) technique that they say could solve that problem. This co...

How do you connect people who have no Internet? How do you build a wireless network outside of the official wireless ISPs? These are questions the Open Technology Institute wants to answer in Detroit...

NFC, or near-field communications, has been around for 10 years, battling its own version of the chicken-and-egg question: Which comes first, the enabled devices or the applications? The technology is...

Like most who grew up in the middle of the 20th century, I have fond memories of my family crowded around a snowy, rabbit-eared tube to watch Bonanza and The Ed Sullivan Show on weekend nights. Back t...

Using a spectrum analyzer for pulsed measurements has always required a careful understanding and knowledge of the parameters of the pulse signal, as well as the subsequent operation of the spectrum...

This section of EDN's Hot 100 Products of 2012 includes communications products - both telecom and datacom related - and RF/microwave products. Click on any product name to read the original full arti...

The Embedded Technology 2012 trade show here focused on five smart technologies: energy, healthcare, agriculture, automotive and transportation systems as well as mobile and cloud computing. The sh...

Steve Hicks and Greg Jurrens explain what went into designing the ultimate, easy-to-use ham radio and how advances in analog electronics made the difference.On Malpelo Island, a barren spot off the co...

Recently we talked about who controls the thermostat in our home. This topic pushed me to investigate a solution that would help me position the controlling temperature sensor where the temperature ne...

A simple model can be used to accurately predict the level of reference spurs due to charge pump and/or op-amp leakage current in a phased-locked loop system. Knowing how to predict these levels hel...

My son rarely listens to “real” radio; he’s more likely to be listening Pandora on his iTouch. When we’re in a hotel, he scrambles for the iPod dock, not a favorite radio station. But I think he—and...

For the first time, researchers power an implantable electronic device using an electrical potential -- a natural battery -- deep in the inner ear.Deep in the inner ear of mammals is a natural battery...