Candace Suriano Suriano Solutions John Suriano Nidec Automotive Motors Americas Dear John, Once again it’s a cold dry winter here and I have found that there is a great way to keep warm— by doing the laundry. I discovered something really strange, though: when I’m taking the laundry out of the dryer it sometimes wakes up the computer on the desk almost ten feet away! I knew … [Read more...]
EMI Across Randomly-Patterned Multiple Traces on a PCB of an Audio/Multimedia Infrastructure: Crosstalk Performance Vis-à-Vis Smart Handheld Devices
PERAMBUR S. NEELAKANTA*, Ph. D., C. Eng., Fellow IEE and AZIZ U. NOORI, M. S. E. E Department of Computer and Electrical Engineering & Computer Science Abstract In the state-of-the-art wireless devices accommodating a dense layout of copper traces on the associated printed-circuit boards (single and/or multi-layered), is inevitable. Relevantly, considering the baseband … [Read more...]
FCC Changes Certification Process
By David A. Case NCE, NCT Senior Technical Leader Regulatory Cisco Systems IncAbstract: The FCC Authorization and Evaluation Branch has been the forefront in regards to reviewing and issuing of FCC certification. With the adoption of the Telecommunications Certified Body (TCB) program, a number of these approvals were done via TCB reviewers with FCC oversight, though the FCC … [Read more...]
Radio Equipment Directive
By Charlie Blackham,Principal Consultant and Director of Sulis Consultants Ltd. This article provides an introduction to the recently published Radio Equipment Directive (RED). It looks briefly at the history of the requirements, the changes in the product and regulatory landscape and looks at what it means to equipment manufacturers. History The current Radio and … [Read more...]
Harmonic Comb Generators Are Useful Tools
By Kenneth Wyatt INTRODUCTION One tool every EMC test lab should own is a harmonic comb generator. A comb generator is simply a device that will produce a set of harmonically related CW signals whose spacing is based on a fundamental oscillator frequency. For example, if we were to start with a 10 MHz clock oscillator and feed the digital output into a coax connector, we’d … [Read more...]
Spectrum Supportability Risk Assessment – A Last Word….For Now….
Hopefully as you’ve been following along our SSRA related posts, you realize that Spectrum Supportability is not something that can be assumed; spectrum demand is increasing and available spectrum is decreasing. The requirement to perform and submit SSRAs is part of the DoD effort to ensure that we don’t continue to field systems with spectrum use issues and/or interference … [Read more...]
A Show Report on the 2015 Santa Clara Symposium on EMC & SI
Whenever I missed an EMC show I always wished there was some sort of report I could read to get a feel for some of what I missed. To that end, here is one on Santa Clara. I have tried to make it informative and fun for non-attendees and attendees alike.This is a major event with a lot of presentations happening in parallel, and I could only attend a short time, so I apologize … [Read more...]
Spectrum Supportability Risk Assessments – Where’s the Beef?
Ideally, an initial spectrum supportability risk assessment is generated in the first phase of the DoD acquisition process. Early identification of spectrum and EMC related regulatory and technical issues allows program management personnel to focus attention and resources on critical spectrum issues in the remaining acquisition phases. The SSRA’s author uses inputs from … [Read more...]
Spectrum Supportability Risk Assessments (continued)…
Just One More Thing on the List!Available expertise and the existence of service Spectrum and E3 related organizations notwithstanding, it is widely known in the DoD Spectrum Management community that program offices, for a variety of reasons, including a lack of understanding of the requirements and their importance, frequently avoid spectrum supportability considerations … [Read more...]
Feedback on the Central Texas EMC Chapter Event and the Upcoming Santa Clara Show
The Central Texas PresentationThe potential audience stayed away in droves with the result that the number attending the presentation was disappointing. This seems strange when you consider the Central Texas Chapter capture area has two major EMC chamber manufacturers, and that previous presentations I have given attracted a big audience. A lot of pizza was taken home – but … [Read more...]
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