Microsoft researchers have come up with a way to better utilize "white space" networks, which would tap into unused TV spectrum to deliver broadband services. In the first version of KNOWS, Microsoft introduced the concept of Time Spectrum Blocks (TSB) as the fundamental unit over which two nodes could communicate. They designed a control-channel based medium access control … [Read more...]
EMI Issues with Power Line Communications Technology Solved
Power line communication (PLC) technology has been difficult to popularize due to skepticism on transmitting IP packets across 110V or 220V power lines as well as how this would address electromagnetic interference. Today, Ethernet adapters using PLC have easy plug-and-play installation onto electrical outlets in any room. This technology comes perfectly at a time when more … [Read more...]
United Nations Studies Bees under Bombardment
The United Nations Environmental Program reports that more than a dozen factors, including electromagnetic fields from sources such as power lines, may be behind the emerging decline of bee colonies across many parts of the globe. Other factors include habitat degradation, parasites and pests, air pollution and herbicides and pesticides.Learn more from the UNEP. … [Read more...]
Testing and Measurement Standards for Power Line Communication Equipment Released
A new standard on broadband over power line (BPL) communications, with smart-grid and other applications, is now available. IEEE 1775-2010: IEEE Standard for Power Line Communication Equipment--Electromagnetic Compatibility (EMC) Requirements--Testing and Measurement Methods Rated 15 000 V and Below presents electromagnetic compatibility criteria and consensus test and … [Read more...]
Company Releases Form-In-Place EMI Gaskets
Chomerics Europe introduced a new one component, form-in-place EMI gasketing material. CHO-FORM 5547 is designed for use in applications such as portable equipment, telecoms and military and marine products. It is useful in applications where assembly closure forces are low and can eliminate the need for fasteners or rigid housings. The new material utilizes nickel-plated … [Read more...]
First Production Orders For Power Platforms
RF Micro Devices, Inc. has received its first volume production orders for its PowerSmart™ power platforms. The production orders are in support of a highly anticipated smartphone and tablet product family to be launched by a leading cellular handset manufacturer beginning in the March quarter. In addition to the RF Configurable Power Core, which performs all power … [Read more...]
Federal Budget Request for NIST Includes $25.4M Lab Renovation
President Barack Obama’s fiscal year 2012 budget submitted to Congress for the U.S. Commerce Department’s National Institute of Standards and Technology (NIST) proposes a funding level of $1.001 billion, an 8.9% increase over the President’s 2011 budget request and a 16.9 % increase above NIST’s 2010 appropriations. The NIST budget doubles funding for NIST laboratories, one of … [Read more...]
Electrostatic Discharge Cripples Galaxy 15 Satellite
The Galaxy 15 telecommunications satellite, which remained electrically active while in an uncontrolled drift in geostationary orbit for more than eight months, was rendered unable to take commands by an electrostatic discharge that fouled its on-board software. The exact cause of the electrostatic discharge, which disabled components in the satellite’s baseband equipment … [Read more...]
Smart Grid Takes Center Stage at CES
This year’s Consumer Electronics Show saw a blending of the consumer electronics and the energy businesses, often in the form of a smart home filled with connected devices. “Home of the future” displays included electric-vehicle chargers, smart appliances, efficient LED lights, and even small wind turbines and solar panels. In cars, Ford decided to introduce its electric Ford … [Read more...]
RF Sniffer Probe Sets for EMC, EMI, RFI Applications
Aaronia’s PBS1 and PBS2 close-field EMC sniffer probe sets comprise five sniffer probes for E-field and H-field measurements in EMC, EMI and RFI applications with RF spectrum analyzers. The probe sets are suitable for EMC and EMI pre-compliance radiated emissions testing and troubleshooting of power supplies, digital circuits, RF systems as well as telecommunications products. … [Read more...]
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