(May 4, 2016) The European Aviation Safety Agency (EASA) recently announced the creation of a task force to assess the risk of collision between drones and aircraft. The task force will review all relevant occurrences, analyze any existing studies on the subject, study the vulnerabilities of aircraft (windshields, engines, and airframe), and consider the possibility to do … [Read more...]
Shielding
Army’s Need for More Spectrum
(May 1, 2016) The electromagnetic spectrum is a valuable, but crowded, asset and the Army’s demand for spectrum has increased dramatically. To complicate matters, today’s operating environment is the most challenging and diverse the Army has ever known. Though primarily based in the continental United States, the Army is expected to respond rapidly to threats and to … [Read more...]
The IEMI Threat and a Practical Response
William Turner Senior Design Engineer MPE Ltd Email: [email protected] IEMI Threat With the increasing use of electronics to control so many aspects of modern life, from smart grids to driverless cars, Intentional Electromagnetic Interference (IEMI) is a threat gaining concern. Various initiatives have been set up to address the needs of specific market areas, and new … [Read more...]
How to Select the Right EMC Standard for Your Product
Many companies developing products find it difficult to determine the appropriate EMC standard to comply with. The IEC (International Electrotechnical Commission) has developed a web page that explains EMC and offers a tabbed selection method for determining the right standard that applies to your product family. You can then go to their web store and purchase downloadable … [Read more...]
How the IEC is Organized for EMC
International EMC standards can be confusing to the newcomer. The IEC has posted a chart as to how the various standards organizations are organized. The first level of organization is the committees, such as TC77, CISPR, and various product committees. These committees have liaisons with associated standards organizations, such as ISO, ITU, CENELEC, and many others. Many of … [Read more...]
New 1GHz Optically Isolated Differential Measurement System
Tektronix recently announced the highest bandwidth optically-isolated differential probing system at APEC 2016. The system offers complete galvanic isolation between the measured system and oscilloscope. The system will accurately measure high bandwidth differential signals in the presence of large common-mode voltages. It will also offer immunity to external interference and … [Read more...]
Blue Guide for EU Product Rules Available
The European Union’s (EU) “Blue Guide” describes general rules for placing electronic products on the market within the EU. It describes how the EU regulates the free movement of goods, when the harmonization rules apply, the product supply chain and their obligations, product requirements, conformity assessment, and accreditation. The document goes on to describe how market … [Read more...]
North Korea Interferes with GPS Navigation Systems
Newsweek reported South Korean officials have accused North Korea of using radio waves to interfere with GPS navigation systems near the border between the two countries. This apparently occurred just after North Korea fired a short-range missile into the East Sea. South Korea’s Yonhap News Agency referred to this as an act of “defiance against mounting pressure to give up its … [Read more...]
CISPR Provides Standards for SmartGrid
CISPR’s (International Special Committee on Radio Interference) primary role is standardization in the field of control of emissions above 9 kHz from devices, and as such has published various standards that cover or can be applied to SmartGrid system emission measurements and control. To ensure protection of the radio frequency spectrum, emissions must be addressed … [Read more...]
EMI Suppression Filters Available
Chilisin Electronics Corp. offers a wide range of surface mount power and signal ferrites and common mode chokes. Korean company Chilisin was established in 1972 and specializes in inductor and filter manufacturing. Their web site has several useful application notes on a wide range of fields, as well as several tools for simulating ferrite performance. To view their … [Read more...]
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