A U.K. radar company has been given funding by the government’s Technology Strategy Board to investigate the possibility of replacing radar in air traffic control systems with television signals to track aircraft in flight. According to the company, the large number of TV transmitters located throughout the country could provide “a more reliable infrastructure” than the … [Read more...]
Grounding Conductor Limitations!
I briefly mentioned some of the elements of grounding in the last post. Technically, there are three types of grounding systems that work: (1) the single point (a.k.a. star) ground (SPG), which uses wires; (2) the multipoint ground (MPG), which requires a ground plane or mesh; and (3) the floating (no) point ground (FPG). All three utilize some variety of RF … [Read more...]
Super Bowl XLVII Attendees Required to Undergo Frequency Scan
In addition to the usual restrictions prohibiting alcohol, food and weapons from being brought into the Superdome, Super Bowl XLVII attendees were subject to an additional restriction this year—a ban on wireless equipment that might interfere with the Superdome Wi-Fi network. “The NFL has a very robust frequency coordination solution in place,” Dave Stewart, director of IT … [Read more...]
“World’s First” IC Embedded Power Management Module for Smartphones and Tablets
TDK Corporation, a manufacturer of electronic components, modules and systems, has released a new series of embedded power management modules for smartphones and tablets. The new module is “the world’s first IC embedded power management module” designed for portable consumer devices, TDK Corporation said in a statement. According to the company, the new IC embedded power … [Read more...]
Understanding EMC Basics: EM Field Theory and Three Types of EM Analysis
Title: Understanding EMC Basics: EM Field Theory and Three Types of EM AnalysisDate: February 27 2013Location: OnlineDescription: This webinar describes a simple, easy non-mathematical engineering understanding of the physical underpinning of electromagnetics leads directly to design techniques for EMC that save time and money overall, improve product functional performance, … [Read more...]
What is the Purpose of a Bonding Terminal on a 19 inch metal chassis if Unwanted Signals don't Flow to Ground?
Editor’s note: This question was asked in response to Interference Technology’s recent webinar by Keith Armstrong. To view the webinar, click here. Question: What is the purpose of a bonding terminal on a 19 inch metal chassis if unwanted signals don't flow to ground? Answer: Bonding terminals are provided on racks, frames and cabinets so that wires or braid straps can be … [Read more...]
Methods of Measurement and Limits for Radiated Disturbances from Plasma Display Panel TVs in the Frequency Range 150 kHz to 30 MHz
From the International Electrotechnical Commission Webstore: “IEC/PAS 62825:2013(E), which is a publicly available specification, applies to plasma display panel TVs which are intended for use in residential or commercial environments, which have a visible display area with a diagonal dimension of 1 m or greater, and which are within the scope of CISPR 13 or CISPR 32.” “This … [Read more...]
European Distribution Agreement for Fiber Optical Delay Line Technology
AR Europe has announced a new distribution agreement with New Jersey-based Eastern OptX, a manufacturer of fiber optical delay systems. The new distribution agreement will cover radar target simulation systems, radio altimeter test sets and channel replicators manufactured by Eastern OptX. For more information, visit AR Europe. … [Read more...]
New “DC Invisibility Cloak” Could Be Used to Disguise Military Vehicles
Researchers in China have developed a “DC invisibility cloak” to hide electrical and magnetic signals that are generated by direct current. The new invisibility cloak has the potential to disguise infrared and magnetic signatures given off by military weapons, aircraft and ground vehicles. Comprised of a network of resistors that assist in “bending” the electromagnetic waves, … [Read more...]
Series of Switchable Step Attenuators Includes “World’s First Up to 67 GHz”
Electronic solutions provider Rhode & Schwarz has released a new series of switchable step attenuators for use in the calibration of measuring instruments. According to the company, the new series includes “the world’s first step attenuator up to 67 GHz and a precision model with 0.1 dB step size offering excellent accuracy and stability.” The new series of switchable step … [Read more...]
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