A brief introduction... Keith Armstrong, Cherry Clough Consultants, Brockton, Stafford, UK This new publication (August 2008) EMC for Functional Safety published by the Institute of Engineering and Technology (IET) replaces the IEE’s 2000 edition. The Guide comprehensively describes practical and cost-effective procedures that can be utilized by both management and … [Read more...]
FCC Cancels December Meeting; Moves on Controversial Actions Postponed
Late on Friday, December 12, 2008, the Federal Communications Commission cancelled the Open Commission Meeting that had been scheduled for Thursday, December 18. The abrupt cancellation came amidst media reports that two prominent members of Congress—Sen. Jay Rockefeller (D. WV) and Rep. Henry Waxman (D. CA)—had sent a letter to FCC Chairman Kevin Martin urging a delay in … [Read more...]
More Test Instrumentation Products
Portable EDS Tester Conforms Fully to Different Calibration RequirementsThe ESD3000 from HV Technologies is a lightweight, hand-held battery operated tester. Its modular construction enables testing to many different standards simply by changing the module. A broad range of accessories enables testing to many applications for contact discharge, air discharge, and indirect … [Read more...]
Automotive Transient Generator System Avoids Test Set-up Problems
The TGAR transient generator system from AR adapts easily to the various requirements of different auto makers. Each automotive standard has from 5 to 30 transients that must be performed. With the TGAR system, there is no need to move the DUT to different test stations. An onboard oscilloscope simplifies pulse verification and self-calibration. LabView-based software and a … [Read more...]
Digi-Key and Schaffner EMC Announce Global Distribution Agreement
EMI/RFI component manufacturer, Schaffner EMC, and electronics distributor have announced that the two companies have entered into a global distribution agreement for the distribution of Schaffner’s full line of EMC and power quality products, such as chokes, filters, pulse transformers, and feed-through components. Schaffner’s products, now available on Digi-Key’s website, … [Read more...]
Improving the Way We Measure Insertion Loss
A proposed set of new test methods may provide more accurate attenuation data Kermit O. Phipps, Philip F. Keebler, Bradford R. Connatser Many commercial and industrial electrical environments contain equipment that is sensitive to radio-frequency (RF) interference. Theft detectors, digital sensors, and medical-telemetry systems have all been known to malfunction in the … [Read more...]
Performing GR-1089-Core Lightning and Power Cross Test
A review of the test methodologies and equipment required to perform GR-1089-CORE lightning and power cross testing James Press, Jennifer Lawrence, Mark Betts, John Ngo ABSTRACT The pitfalls and difficulties in performing testing in accordance with GR-1089-CORE, Section 4 are discussed. A brief description of the GR-1089-CORE document is presented to familiarize the reader … [Read more...]
EMC in Space …
Successfully dealing with EMC in space systems requires strong EMC engineering Daryl Gerke, PE, and William Kimmel, PE Many of us in the EMC business came of age during the “space race” of the 1950s, 60s, and 70s. We well remember names like Sputnik, Mercury, Gemini, and of course, Apollo. Some of us in the EMC business have even been fortunate enough to spend some (or all) or … [Read more...]
Smaller Footprint Provides Excellent Chip Bead Solution for Portable / Handheld Electronic Applications
Laird Technologies, Inc. has announced its new line of EIA 0201 Ferrite Chip Beads that extends the existing 0402 to 3312 surface-mounted monolithic EMI suppression product families. The LI0201 chip beads’ smaller, miniature footprint make them ideal for advanced handheld electronic devices such as cellular phones, Bluetooth® handsets, PDAs, GPS, MP3 players, digital … [Read more...]
Portable ‘Pain Ray’ Guns No Longer Science Fiction
Raytheon now markets a more portable version of its non-lethal “pain ray” weapons. The “Silent Guardian,” a part of Raytheon’s Active Denial System, uses high-frequency radio beams that make human targets feel like they are on fire. The futuristic weapon produces high-frequency millimeter waves directed toward the target by an antenna that looks like a radar dish. It directs a … [Read more...]
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