The International Electrotechnical Commission has issued IEC 61000-4-7-am 1 Ed. 2.0. This amended standard is entitled, “Electromagnetic compatibility (EMC) – Part 4-7: Testing and measurement techniques – General Guide on harmonics and interharmonics measurements and instrumentation for power supply systems and equipment connected thereto.” For more information, or to … [Read more...]
New York State Company Offers Military-Approved QPL Inductors
Gowanda Electronics, of Gowanda, N.Y., has introduced a military-approved RF inductor series which is on the military’s Qualified Product List per MIL-PRF-83446. Gowanda’s MLRF3013 series addresses a need in the marketplace for enhanced RF inductor options in military applications. The MLRF3013 series is designed for RF electronic applications in military, aerospace and defense … [Read more...]
New Handheld Tektronix Real-Time Spectrum Analyzers Show Live RF
Tektronix, Inc., a worldwide provider of test, measurement and monitoring instrumentation, announced the new SA2600 handheld Real-Time Spectrum Analyzer that includes DPX™ waveform image processor technology that provides a live RF view of the spectrum. DPX is now also available on the H600 “RF Hawk” handheld unit originally introduced in February. With these additions, … [Read more...]
CAP Wireless Signs McBride Scientific Sales as Manufacturer’s Representative for U.S. Southern Region
CAP Wireless, Inc. (CAP), a leading supplier of high-performance microwave and RF amplifiers and amplifier-based subsystems, today announced that in order to provide dedicated service and support to customers in the Southern Region of the United States, the company has signed McBride Scientific Sales, Inc. as a manufacturer’s representative for Texas (except El Paso), Oklahoma, … [Read more...]
A Discussion on the FCC SAR Test Guidance Documents for Laptops and Handsets with Multiple Transmitters
The FCC will address exactly what TCBs can review for SAR and simultaneous transmitters in future updates to the TCB exclusion list. David A. Case, Cisco Richfield, Ohio, USA For those involved with product approval for Federal Communications Commission (FCC) certification, the use of the Telecommunication Certified Body (TCB) for approval helps speed the process for product … [Read more...]
Sometimes an EMI Test Failure is not an EMI Test Failure – Lessons Learned in the Real World of Shielded Enclosure Testing
EMI testing in an unusual environment takes more time than testing in a lab environment. Ed Kirchner, Harris Corporation, Melbourne, Floria, USA Jeff Prosser, Rubicom Systems, Melbourne, Floria, USA Grant Lohsen, Georgia Tech Research Institute, Atlanta, Georgia, USA INTRODUCTION A Harris Corporation test team recently performed a shielding effectiveness test on a welded … [Read more...]
EMI Absorber Sheets Work Below 1 GHz
EMI Absorber Sheets from 3M Electrical Markets Division provide enhanced absorption of electromagnetic interference at frequencies below 1 GHz. The 3M™ EMI AB5000S reduce EMI noise and harmonic coupling in electric equipment, cables, or circuits, including any portion covered by a shielded can. They reduce the EMI susceptibility of sensitive components, including RFID or Hall … [Read more...]
CAP Wireless Signs McBride Scientific Sales as Manufacturer’s Representative for U.S. Southern Region
CAP Wireless, Inc. (CAP), a leading supplier of high-performance microwave and RF amplifiers and amplifier-based subsystems, today announced that in order to provide dedicated service and support to customers in the Southern Region of the United States, the company has signed McBride Scientific Sales, Inc. as a manufacturer’s representative for Texas (except El Paso), Oklahoma, … [Read more...]
New Version of Power Amplifier Offers Pulse Fidelity and Improved Spurious Response
A new version of the RM022020 from CAP Wireless achieves enhanced performance with excellent pulse fidelity and improved spurious response (typically -85 dBc). This new version of the RM022020, originally introduced in the fall of 2007, is part of a series of high-power instrumentation amplifiers based the CAP’s proprietary Spatium™ broadband spatial combining technology. … [Read more...]
Investigators Rule Out EMI in Investigation of Boeing Crash Landing at Heathrow
Since the crash landing of a Boeing 777 returning from Beijing to London's Heathrow Airport on January 17, 2008, speculation and the rumor bill have looked for an explanation as to what caused a crash landing on a grassy area short of the runway after a seemingly normal flight. One persistent version blamed electromagnetic interference from the many WiFi systems in densely … [Read more...]
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