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Military and Aerospace EMC

High Intensity Radiated Fields (HIRF), Part 4

This article explains HIRF certification testing for aircraft, detailing transfer function measurement methods like LLDD and LLSF. It outlines how induced current measurements determine airframe attenuation and how test limits vary based on equipment criticality and aircraft size.RetryClaude can make mistakes. Please double-check responses.

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U.S. Federal Communications Commission (FCC)

FCC Issues Limited Delay in TCPA Implementation

The U.S. Federal Communications Commission (FCC) has temporarily delayed the implementation of a key aspect of its robocall consent requirements to give affected parties more time to modify their existing communications systems.
American Radio Relay League (ARRL)

Efforts Underway to Save Marconi Radio Towers in Canada

Efforts are reportedly underway to preserve some of the defining infrastructure of modern radio technology. The ARRL reports that the National Trust for Canada has launched a “Next Great Save” project to restore some of the original radio towers designed and developed by Guglielmo Marconi, who pioneered the creation of radio wave-based telegraphy in the late 1800s.
U.S. Food and Drug Administration (FDA)

FDA Struggles to Meet Product Review Deadlines

Staff at the U.S. Food and Drug Administration (FDA) are reportedly struggling to meet application review deadlines for medical device and tobacco products due to recent staff reductions.

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Compliance Resources

Application Note

Common Test & Calibration Uses of a Portable Signal Generator in The Field

This versatile field device generates signals that mimic various sensors to test and calibrate equipment. It helps technicians troubleshoot connections and verify system performance. Portable and battery-powered, it's designed for on-site diagnostic work in industrial environments.

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U.S. Food and Drug Administration (FDA)

FDA Warns Against Unauthorized Modifications to Medical Devices

The U.S. Food and Drug Administration (FDA) is also stepping up its efforts to identify FDA-cleared medical devices that have been subsequently modified and that no longer fall within the scope of their original clearance.
U.S. Food and Drug Administration (FDA)

FDA Alerts the Medical Device Industry About Unreliable Third-Party Test Data

The U.S. Food and Drug Administration (FDA) is advising medical device manufacturers to take steps to verify the accuracy and reliability of third-party testing data before submitting it to the FDA.
U.S. Federal Communications Commission (FCC)

FCC to Investigate CCP-Aligned Entities

The U.S. Federal Communications Commission (FCC) has launched a major investigation into entities operating in the U.S. that are aligned with China’s Communist Party (CCP) and whose communications equipment has been placed on the FCC’s Covered List.
National Institute of Standards and Technology (NIST)

NIST Releases Draft of Quick Start Guide for Cybersecurity Framework 2.0

The U.S. National Institute of Standards and Technology (NIST) has released for public comment a draft of a Quick Start Guide for its Cybersecurity Framework 2.0.

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Feature Articles

Design

Filter Designs for Switched Power Converters: Part 2

This series of articles delves into the design principles of power filters for switched-mode power converters and similar applications, focusing on conducted and radiated emissions. Part 2 will examine specific aspects of switched power converters.
Military Standards

Tailoring MIL-STD-461 RE102

This article describes the parameters that can be used to tailor your application of MIL-STD-461 RE102, such as frequency ranges, designing notches, and relaxing limits.
ESD Standards

A Circuit Model for the Charged Device Model Spark

The charged device model spark itself is not just resistive; it often has extra inductance or L-C energy storage. These plus hardware properties affect the CDM waveform and affect methods to correlate alternate CDM test methods to standard JEDEC CDM.

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