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...]
Amplifers
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...]
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...]
New Partnership to Improve EMC Testing Solutions
Empower RF Systems and Advanced Test Equipment Rentals (ATEC) have entered a new rental partnership that allows ATEC to distribute Empower’s high power amplifiers for EMC compliance and product testing applications. “ATEC will now carry the Empower Next Generation Platform of RF amplifiers, including the 1 to 3.1 GHz, 1 kW HPA, model 2170, which is ideal for Automotive and … [Read more...]
iPad Software Glitch Reportedly Grounds Numerous U.S. Flights
An iPad software glitch delayed a total of 74 American Airline flights last week. The glitch caused an error with the digital map that pilots use in the cockpit. "Some flights are experiencing an issue with a software application on pilot iPads. In some cases, the flight has had to return to the gate to access a WiFi connection to fix the issue," American Airlines … [Read more...]
New Four-quadrant Voltage Drop Simulator for Automotive Testing
EM Test now offers a four-quadrant, bi-polar voltage drop simulator - the VDS 200Q Series. The amplifier can “source and sink current using a programmed voltage in both positive and negative polarities. The amplifier generates dips and drops, short interruptions and voltage variations to simulate a wide range of phenomena occurring on a vehicle wiring harness,” according to … [Read more...]
Log Video Amplifiers Perform Up to 18 GHz
Pasternack announces a new line of broadband logarithmic (log) video amplifiers that cover bandwidths from 0.5 GHz to 18 GHz. The amplifiers utilize GaAs semiconductor technology, which makes them ideal for use in measuring signals at high frequencies in high speed applications. “These log amplifiers can process up to 75 dB of dynamic range and have log linearity that ranges … [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...]
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