The Federal Aviation Administration released a Notice of Presumed Hazard against a proposed 443-foot high Ferris Wheel on the water front in San Diego, Calif. The FAA believes the structure will cause electromagnetic interference and affect navigation systems in aircraft. In the notice, the FAA stated if the wheel does not exceed 277 feet the government could issue a favorable … [Read more...]
Barrel Balloon Research Suggests Electromagnetic Waves Negatively Affect Earth
A NASA-sponsored research team from Dartmouth demonstrated that plasma waves pounding the planet’s radiation belts are responsible for distributing charged particles into the atmosphere. This type of solar activity can fluctuate and disrupt communication systems, GPS satellites, manned space exploration and power grids. The research team frequently studies the Van Allen … [Read more...]
‘Electrosensitives’ Congregate in Wi-Fi Quiet Zone in West Virginia
A national radio quiet zone in Green Bank, West Virginia, limits transmissions to protect a government telescope. This telescope, known as the National Radio Astronomy Observatory's Robert C. Byrd Green Bank Telescope, is the world’s largest fully steerable radio telescope. The telescope can pick up radio waves from space that are weak and difficult to identify. “The Federal … [Read more...]
UK Homeowners Could Face Criminal Prosecution due to EMI
Homeowners in the United Kingdom who use main wiring systems in their homes (power line networking equipment) could face prosecution if their broadband interferes with radio signals. This method of networking has become a clear alternative to Wi-Fi networks. Ofcom, the communications regulator in the UK, has published a new proposal for a regulation that would allow officials … [Read more...]
Proposed Power Plant’s Possible EMI Could Affect Air Safety
The Federal Aviation Administration is against an 805-megawatt natural gas power plant that Competitive Power Ventures wants to put on a hill near the Waterbury-Oxford Airport in Connecticut. The FAA believes the power plant will cause electromagnetic interference and many safety issues for pilots. The FAA is concerned with air navigation being negatively affected. It stresses … [Read more...]
Priest Installs Cellphone Jammer in Church to Decrease Interruptions During Mass
The Rev. Michele Madonna, a Roman Catholic priest from Naples, Italy, has discovered a new approach to silencing cell phones during mass. Madonna installed a cell signal jammer in the Santa Maria di Montesanto Church, which interferes with signals in electronic devices and cell phones. "I had put signs up asking people to switch off their phones after having services … [Read more...]
Radio Interference Causes Headset Issues During Football Sunday
Last Sunday, the Baltimore Ravens experienced headset issues during their game against the Miami Dolphins. All football quarterbacks wear helmets with radio signal transmitters inside to allow them to receive play calls from their coaches. Last week, communication issues in quarterback Joe Flacco’s helmet caused him to run back and forth to the sidelines after every play to … [Read more...]
Characterization of EMI shielding gaskets up to 40 GHz
Christian Brull EMI gaskets are conductive hardware designed to conform to joint surface and provide a low impedance path. Compressed between two metal flanges, the gasket presents a complex impedance with resistive, inductive and capacitive properties. This will vary with frequency, materials, compression rate, geometry of the joint, etc. In the meantime, major differences … [Read more...]
Family of Rugged Inductors offers High Inductance and High Performance
Coilcraft introduces its new family of magnetically shielded power inductors – the XAL15xx family. These rugged inductors offer high inductance, high performance and high Isat versions. The inductors in the XAL1510 Series are available in two versions, the XAL1510 and XAL1580. The XAL1510 is compact and has measurements of 15.4 X 16.4 mm with a maximum height of 11.0 mm. It … [Read more...]
Company’s Board Level Shielding Improves EMI Protection in Automotive Industry
Orbel Corporation provides EMI protection to assist the automotive industry. “Electronics in vehicles to enhance the driving experience and increase passenger safety is rapidly growing. With increased utilization of electronic systems, electromagnetic interference (EMI) is becoming an important aspect of vehicle design. EMI issues can range from simple annoyance such as static … [Read more...]
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