International EMC standards can be confusing to the newcomer. The IEC has posted a chart as to how the various standards organizations are organized. The first level of organization is the committees, such as TC77, CISPR, and various product committees. These committees have liaisons with associated standards organizations, such as ISO, ITU, CENELEC, and many others. Many of … [Read more...]
Shielding
- High Precision 3D-Laser Cutting Technology for RF Shield Modifications - Presented by Masach
- NextGen RF Shields 5G-Enabled, Online Catalog - Presented by Masach
- RF Shielding Tames RFI and EMI Emissions - Presented by Masach
- Making Repairs Possible with Two-Piece RF Shields - Presented by Masach
- Adding Mouse Holes To Standard RF Shield - Presented by Masach
New 1GHz Optically Isolated Differential Measurement System
Tektronix recently announced the highest bandwidth optically-isolated differential probing system at APEC 2016. The system offers complete galvanic isolation between the measured system and oscilloscope. The system will accurately measure high bandwidth differential signals in the presence of large common-mode voltages. It will also offer immunity to external interference and … [Read more...]
Blue Guide for EU Product Rules Available
The European Union’s (EU) “Blue Guide” describes general rules for placing electronic products on the market within the EU. It describes how the EU regulates the free movement of goods, when the harmonization rules apply, the product supply chain and their obligations, product requirements, conformity assessment, and accreditation. The document goes on to describe how market … [Read more...]
North Korea Interferes with GPS Navigation Systems
Newsweek reported South Korean officials have accused North Korea of using radio waves to interfere with GPS navigation systems near the border between the two countries. This apparently occurred just after North Korea fired a short-range missile into the East Sea. South Korea’s Yonhap News Agency referred to this as an act of “defiance against mounting pressure to give up its … [Read more...]
CISPR Provides Standards for SmartGrid
CISPR’s (International Special Committee on Radio Interference) primary role is standardization in the field of control of emissions above 9 kHz from devices, and as such has published various standards that cover or can be applied to SmartGrid system emission measurements and control. To ensure protection of the radio frequency spectrum, emissions must be addressed … [Read more...]
EMI Suppression Filters Available
Chilisin Electronics Corp. offers a wide range of surface mount power and signal ferrites and common mode chokes. Korean company Chilisin was established in 1972 and specializes in inductor and filter manufacturing. Their web site has several useful application notes on a wide range of fields, as well as several tools for simulating ferrite performance. To view their … [Read more...]
National Radio Quiet Zone – Quietest Place in the USA
(April 4, 2016, Kenneth Wyatt) With all the mobile communications we enjoy, along with the associated radio, television and cell phone transmitting towers, would you believe there is a place in the U.S. where all that is either prohibited or very closely controlled? That place is the The National Radio Astronomy Observatory (NRAO) in Green Bank, West Virginia. What originally … [Read more...]
Cell Phone Co. Works with Satellite Industry to Reduce Potential Interference
According to FierceWireless.com, "Verizon representatives who met with FCC officials on March 1 said they will be working with satellite providers to try to find common ground on potential interference issues between future mobile terrestrial operations and existing satellite earth stations in the 28 GHz band." FierceWireless.com reported that "Verizon says it supports rules … [Read more...]
New EMI Shielded Vents and Filters
Tech-Etch has EMI Shielded Honeycomb Vents, Fan Vents, Quiet Vents, and Air Filters from prototype to high volume in all shapes and sizes available now. Their in-house plating improves shielding effectiveness and environmental protection, while providing fast turnaround. Many RoHS compliant finishes are available. Honeycomb Vents are offered in both standard and custom … [Read more...]
New Edition of ICES-003 Published by IC
Test lab, SIEMIC, reports that in January 2016, Industry Canada (IC) published the new 6th edition of IC Interference-Causing Equipment Standard ICES-003, Issue 3, with the helpful title “Information Technology Equipment (Including Digital Apparatus) – Limits and Methods of Measurement”. This ICES standard is the primary document that defines the test methods and frequency … [Read more...]
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