John Zavodny, EMC sales manager at Rohde & Schwarz, walks through the company’s products and explains how to use them. … [Read more...]
Scientists Concerned with Electronic Device Radiation File Appeal to UN
Scientists from 39 different nations are concerned about electromagnetic fields (EMFs) and radiation from mobile phones, tablets, laptops and other electronic devices. A group of 199 scientists have filed an appeal, titled “International EMF Scientist Appeal,” with the United Nations and World Health Organization (WHO) and have requested the organizations adopt more protective … [Read more...]
FCC’s Plan to Revitalize AM Radio Concerns Listeners
On May 15, iHeartMedia met with the FCC Media Bureau to discuss the current plan to revitalize AM Radio and to discuss an ex parte letter describing possible changes to AM radio stations. The plan in place will reduce skywave interference protection which make it easier for AM radio stations to operate and give users more flexibility. Jeff Littlejohn of EVP/Engineering and … [Read more...]
Anti-jamming Technology Effective in Protecting Satellites from Interference
Boeing Engineers have tested an anti-jamming technology for satellites that shields signals from interference and have proven the technology is capable of operating both on the ground and in a satellite-based networking hubs. The test was completed under a contract for the U.S. Air Force Space and Missile Systems Center and was supervised by the U.S. Government. It was … [Read more...]
California Electrosensitive Haven can be Purchased for 8.6 Million Dollars
An apartment, Unit 4 at 2170 Jackson Street in San Francisco, Calif., is currently on the market for $8.6 million dollars. It’s reportedly a safe space for electrosensitives. “Electrosensitives” are people who have illnesses and attribute the cause to electromagnetic radiation emitted from electronic devices, such as phones, computers or wireless routers. The apartment has … [Read more...]
Astronomers Discover 17-Year Interference Caused by Microwave Oven
For nearly 17 years astronomers at Parkes Observatory in Australia searched for the reason why radio interference took place during experiments and observations. They discovered early this year that the interference was coming from a microwave oven in the observatory’s kitchen. Parkes Observatory houses one of the best-known radio telescopes in the country. It is used to … [Read more...]
Maglev Hovering Train Breaks Speed Record
A seven car Maglev (magnetic levitation) Train in Central Japan broke its own speed record when tested near Mount Fuji this week. In 2003 the Maglev’s record was 268 mph and last week it reached 366 mph. On Tuesday the Maglev surpassed both previous records and reached 374 mph. The Maglev train hovers four inches above the tracks and is propelled by electrically-charged … [Read more...]
Invisible Objects Created in the Microwave Range Without Metamaterial Cloaking
Physicists from ITMO University, Ioffe Institute and Australian National University have made homogenous cylindrical objects entirely invisible in the microwave range without metamaterial cloaking. Until now, invisibility relied on metamaterial coatings, which can change the direction of light and make light curve around cloaked objects. However, with a new understanding of … [Read more...]
FBI Pulled Security Expert from Flight for Alleged Hacking Concerns
The FBI pulled Chris Roberts, a computer security expert, from his United Airlines Flight last Wednesday in Syracuse because of suspicions that he hacked the airplane. Roberts tweeted referencing the plane’s communication systems suggesting he was going to use his laptop to force the plane’s emergency oxygen masks to deploy. The tweet read: “Find Myself on a 737/800, let’s see … [Read more...]
Harmonic Comb Generators Are Useful Tools
By Kenneth Wyatt INTRODUCTION One tool every EMC test lab should own is a harmonic comb generator. A comb generator is simply a device that will produce a set of harmonically related CW signals whose spacing is based on a fundamental oscillator frequency. For example, if we were to start with a 10 MHz clock oscillator and feed the digital output into a coax connector, we’d … [Read more...]
