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Interference Technology

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Battery Test System Expands

 

Advanced Test Equipment Rentals (ATEC) and NH Research, Inc. (NHR) have recently announced Advanced Test Equipment Rentals will be an authorized rental partner of the NHR 9200 battery test system.  The Battery test system provides automated characterization, power cycling & life-cycle testing of battery modules & packs. “The NHR 9200 battery test system is designed for … [Read more...]

New Component Line Includes Power Dividers and Wide Band Directional Couplers

 

Megaphase, a designer, manufacturer and marketer of high performance RF coaxial cables, connectors and components, has recently introduced its new component line that has both the 0.5-6.0 GHz band power dividers and wide band directional couplers.   “The 0.5-6.0 GHz Band Power Dividers are designed based upon the Wilkinson structure and are available in 2-Way, 4-Way and … [Read more...]

Mains Input Filters – What is Inside the Box and Why?

 

J M Woodgate BSc(Eng) C.Eng MIET SMIEEE FAES HonFInstSCE J M Woodgate and Associates jmw@jmwa.demon.co.uk www.jmwa.demon.co.uk   These days, it's common practice to buy-in mains input filters in the shape of metal boxes with four or five terminals. The supplier's lists may be consulted, and advice sought, but often the same filter as was used for a previous product is … [Read more...]

CISPR 32 – What is it, Why was it Written and Where is it Going?

 

Ghery S. Pettit, NCE President, Pettit EMC Consulting LLC   Introduction   CISPR 32, “Electromagnetic compatibility of multimedia equipment – Emission requirements” was first published in 2012. This standard came about due to a major development in consumer electronics, the digital television receiver. The CISPR is a special committee of the IEC. CISPR stands for … [Read more...]

How do you measure 5G?

 

By Lars Jacob Foged   The development of 5G cellular networks is well underway and requires a new approach to ensure accurate measurement of the antenna components. With flexible radiation patterns which are capable of adapting to the changing situations in mobile networks, the full characterisation of the Active Antenna System (AAS) in 3D space has been the focus of … [Read more...]

Spectrum Supportability Risk Assessments: An Overview

 

By Brian Farmer   Introduction   As we ride on the cusp of a new age of electronic warfare, management and use of the electromagnetic spectrum are becoming increasingly important.  In fact, the Department of Defense (DoD) has deemed the electromagnetic spectrum a critical resource and has established DoD Instruction 4650.01, which defines policy and procedures for … [Read more...]

A Solution to Enhance Reproducibility With Radiated RF Emission and Immunity Measurements?

 

Mart Coenen EMCMCC, Breda, the Netherlands.     Most, if not all electrical and electronic appliances have to be tested on their radiated RF emission and their immunity against RF radiated fields. This radiated testing occurs either on an open area test site (OATS) or in an anechoic or semi-anechoic room (SAR). The electrical and electronic appliance to be measured … [Read more...]

AH Systems – TV and FM Radio Frequency Chart

 

Presented by AH Systems - Download this list of frequencies that TV and radio stations use, as mandated by the FCC. If these are frequencies of interest, or if testing is to be performed at or near these frequencies, this should help identify which signals are particularly strong ambient signals from local TV and radio, versus the often less powerful transmitters used in … [Read more...]

High Intensity Radiated Fields (HIRF) Course

 

Title: High Intensity Radiated Fields (HIRF) Course Date: October 20 - 23 2015Location: Wichita, KSDescription: This workshop will provide an awareness of all aspects HIRF and Lightning systems and aircraft testing in regard to compliance to the existing rules. In addition, with recent revisions to guidance material and FAA policy towards Fuel Tanks (25.981) and PED tolerance, … [Read more...]

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