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April 2016

UL 62133: A Globally Harmonized Option for Portable Battery Compliance

Battery-powered devices are commonly certified under standards categories such as information technology equipment (ITE),...

Specifying Accredited Calibration Services: A Review of Electrical Test Equipment

This article highlights topics for consideration when obtaining an accredited calibration service. Also included is a step-by-step tutorial on how to obtain an accredited calibration for a log-periodic dipole array (LPDA) antenna.

Exploring the Characteristics of Field Coupled Crosstalk

Interference between circuits is a common occurrence, which is increasingly problematic with our ever condensing technology operating in a wide range of operating frequencies. This interference, known as crosstalk, can be conducted or radiated, and we refer to the circuits generating and receiving this interference as either the source or receptor.

Effects of Lightning on ICT Circuits: Induction and GCR

Generally the effect of lightning on an information and technology (ICT) loop that we worry about most is damage. Let’s consider an ICT loop that is probably the most exposed to the effects of lightning – one that runs between structures.
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Using Spread Spectrum Techniques to Reduce EMI

Digital and power electronic systems can reduce the radiated and conducted emissions profile using spread spectrum techniques. Typically, no more than 10-12dB can be obtained with those techniques but the result can be useful to comply with regulations.

The Growing Trend: Multi-Symbol Product Warning Labels

As part of our series exploring the latest industry insight on effective product safety label design and symbol usage, this month’s topic focuses on the trend towards multi-symbol labels, showing both hazard description AND hazard avoidance visually – and ultimately moving to a fully graphic approach.

Letter to the Editor: Comparing Test Methods for EMI Gaskets

Regarding the article “Comparing Test Methods for EMI Gaskets” by George M. Kunkel (In Compliance Magazine, January 2016), both the text and the caption to Figure 2 mention shielding effectiveness tests performed on “newspaper”??

Analysis of MIL-DTL-83528 Test using Newspaper at 2 GHz

Testing newspaper using the spec MIL-DTL-83528 resulted in shielding results of 60, 75 and...
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Controlling Radiated Emissions by Design: A Book Review

Much has been written on the subject of radiated emissions and it is with pleasure that I have been given the opportunity to review the Third Edition of Controlling Radiated Emissions by Design by Michel Mardiguian (with contributions by Donald. L. Sweeney and Roger Swanberg).

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