The Federal Communications Commission’s Office of Engineering and Technology (OET) has announced that as of July 14, 2008,it will begin field testing the performance of prototype White Space devices designed to operate in vacant spectrum between those bands used by digital television broadcasters. These tests are part of the FCC process of rulemaking and will help determine … [Read more...]
CISPR Issues Technical Report on EM Disturbance Measurements from Large Equipment
CISPR 16-2-5:2008(E) deals with in situ electromagnetic disturbance measurements in any environment from physically large equipment and systems excluding networks. It covers both radiated and conducted emission phenomena and does not deal with immunity tests. This technical report is intended to be applied primarily to such physically large equipment that are not under the … [Read more...]
Wireless Telecom: Online Information for FCC Limits Calculations and Important Web Links
http://www.atcb.com/tools.asp … [Read more...]
Aperture Radiation…EMC Demonstrations and Solutions: The Whys and Hows
Washington Laboratories EMC presentation - Aperture Radiation click here. … [Read more...]
Long Term Exposure to ELF EM Fields Impairs Spatial Recognition Memory in Mice
A study reported in the current issue of a prominent medical publication indicates that mice that were subjected to prolonged exposure to extremely low-frequency (ELF) electromagnetic fields displayed significantly impaired spatial recognition memory. Researchers exposed the mice to 25 or 50 Hz of electromagnetic fields for either 7 or 25 days and then tested them in a Y maze. … [Read more...]
Two CISPR EMC Drafts Issued
CISPR 15 Amd. 2 Ed. 7.0 (2008-06) and CISPR16-2-1 Ed. 2.0 (2008-06) are now available. Amendment 2 of CISPR 15 involves the “introduction of measurement instrumentation uncertainty and deletion of banning of sales.” Edition 2 of CISPR 16-2-1 involves the “specification for radio disturbance and immunity measuring apparatus and methods – Part 2-1: Methods of measurement of … [Read more...]
Alion Awarded $7-Million Contract to Provide RF Services to NOAA
Alion Science and Technology has won a $7-million contract to provide a wide range of radio frequency (RF) services to the National Oceanic and Atmospheric Administration (NOAA). This three-year contract was awarded through the Modeling and Simulation Information and Analysis Center (MSIAC). Under terms of the contract, any NOAA office can utilize Alion’s expertise in RF … [Read more...]
RF Technology Firm Aeroflex Buys Swedish Processor Company
Colorado-based Aeroflex, Inc. has announced the purchase of privately held Gaisler Research AB of Gothenburg, Sweden. Aeroflex supplies RF and broadband technology to the aerospace, defense, and communications industries. Gaisler has developed a range of SPARC-compliant synthesizable processors that are available under free licensing terms. Known as Leon, the processor … [Read more...]
Testing of the Global Hawk’s Electromagnetic Profile Completed at Edwards Air Force Base
The Global Vigilance Combined Test Force has concluded an electromagnetic profile study of Northrup Grumman's RQ-4 Global Hawk 20 aircraft at the Benefield Anechoic Facility at Edwards Air Force Base in California. The completed three-week study marked the first time the test force used an entire Global Hawk aircraft inside the anechoic facility. In the past, testers had used … [Read more...]
Oxlely to Provide New Custom Filter for Commercial Aircraft
UK-based Oxley Development Company Ltd. has partnered with Turbo Power Systems (TPS) to provide an EMC compliant filter system for a new commercial aircraft. In designing a rack-mounted liquid-cooled controller for the aircraft’s jettison fuel pump, TPS needed a high performance filter connector that would not only remove EMI from system and power lines but would also meet the … [Read more...]
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