Last week brought news of massive jamming to stymie radio broadcasts, emails, and cell phone communications beaming both out of and into Iran, thus challenging the ability of journalists to cover the massive protests that erupted after the results of that country’s presidential election met with widespread skepticism and charges of election fraud. Now, broadcasters are … [Read more...]
Editor’s Note: Erratum
Last week’s edition of the eNews contained two errors that were doubtless spotted by our alert readers. The last name of long time IEEE stalwart and Lord Kelvin Award recipient Don Heirman was misspelled. Also, the article on media jamming and civil unrest referred to the nation of Iran, not Iraq. We truly know better and apologize to our readership for the slips in … [Read more...]
Jamming, Protest, & Tweeting
There may have been a time when political science, international relations, and information technology seemed like three demanding but largely unrelated subjects, but history has a way of confounding our expectations. The current civil unrest in Iran following last Friday’s disputed presidential election results is certainly a case in point. The BBC reports that its BBC Persia … [Read more...]
AR’s Impulse Generator, Leak Detector and Noise Meter
AR RF/Microwave Instrumentation offers several products for use in EMC testing, including: Variable Rate Impulse Generator: AR’s Model 533X-11M (10 kHz–1 GHz) variable repetition rate impulse generator is a calibrated broadband signal source that is used primarily as a calibrator when performing substitution type interference measurements. It has a variable pulse repetition … [Read more...]
EMFs Steer the Birds
Mine That Bird may have won the Kentucky Derby, but for generations scientists have wondered what steers all those birds. What explains the ability of migratory flocks to fly north as the weather warms and south again as winter approaches? Now, scientists at the University of Illinois believe they have come up with an answer and have published an article in the latest issue of … [Read more...]
ANSI Slates C63® Pre-Symposium Workshops
The ANSI (the American National Standards Institute) Accredited Standards Committee C63® – EMC will present Workshops on C63.4 and C63.5 on August 14 and 15, 2009 just prior to the 2009 IEEE International Symposium on EMC. This year’s topics will include ANSI C63.4 (emission measurements) and ANSI C63.5 (antenna calibration). A new test validation technique using time domain … [Read more...]
EMC Test Lab for St. Paul, MN
Minnesota Wire recently announced the opening of its EMC test lab is St. Paul, MN. The new lab consists of a three-meter EMI chamber that will be used to test for susceptibility, shielding effectiveness, and pre-compliance to relevant standards. Minnesota Wire’s test and measurement center now includes three segments: EMC testing, physical testing for properties including … [Read more...]
Testing Firm Acquires EMI/EMC Laboratory
Advanced Compliance Solutions, Inc. has acquired the Florida Atlantic University (FAU) EMI lab in the Research Park adjacent to the university in Boca Raton and is assuming operations of the lab immediately. The acquisition expands both ACS’s market reach and the south Florida lab capabilities available to electronic manufacturers. ACS provides EMC, product safety, wireless … [Read more...]
Shielding for Inter-Operative MRI
Ben Turner of ETS-Lindgren has written this timely paper on shielding MRI units.READ MORE … [Read more...]
European Union Posts Harmonized EM Standards
The Official Journal of the European Union has posted online “the framework of the implementation of Directive 2004/108/EC of the European Parliament and of the Council of 15 December 2004 on the approximation of the laws of member states relating to electromagnetic compatibility.” The 21-page document provides the exact titles of 127 Cenelec, 12 CEN, and five ETSI standards. … [Read more...]
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