New CHO-SEAL® 1270 from Parker Chomerics is an ultra-soft gasket consisting of silver-plated copper particles within a silicone elastomer. It offers shielding effectiveness greater than 70 dB from 100 MHz through 10 GHz and 35 ±5 Shore A hardness and 9 percent compression set. Available forms include compression molded sheets, die-cut parts, and custom molded shapes with a … [Read more...]
GPS Module Includes Filters to Forestall Interference in New Mobile Telecom Apps
The new BGM681L11 from Germany’s Infineon Technologies AG is being debuted as “the world’s smallest GPS receive front-end module. The necessity of forestalling interference with cellular signals and the constraints of limited PCB space are two of the major design challenges encountered in designing the next generation of wireless, multi-function cell phones. The BGM681L11 … [Read more...]
New Surface Mount RFI Clips Speed Product Assembly Time
A new range of surface mount EMI/RFI shield clips from UK-based interconnect company Harwin help reduce assembly time and simplify rework by eliminating secondary soldering operations. Unlike conventional EMI/RFI shields that must be hand-soldered to the board, these new shield clips are supplied in industry-standard tape-and-reel packaging and can be soldered using standard … [Read more...]
FCC Names Computer and Telecommunications Network Expert as Chief Technologist
Jon M. Peha, Ph.D. has been appointed Chief Technologist of the Federal Communications Commission. Dr Peha will serve as a senior advisor on communications technology in the FCC’s Office of Strategic Planning and Policy Analysis. Currently, Dr. Peha is a professor in the Departments of Engineering and Public Policy and Electrical and Computer Engineering at Carnegie Mellon … [Read more...]
Congressional Subcommittee Hears Testimony on Cell Phone Use and Cancer Risk
A U.S. House of Representatives Subcommittee on Domestic Policy heard testimony on Thursday, September 24 on the state of scientific knowledge and any possible link between cell phone use and an increased incidence of brain cancer. Chaired by Rep. Dennis Kucinich (D. Ohio, shown at left), the committee heard representatives from the Federal Communications Commission, the … [Read more...]
British Scientists Issue Call for Sense in Assessing EMF Risks
Eight prominent British scientists have published a paper calling for sense in regard to the supposed health perils of “electromagnetic smog” and have criticized companies that seek to profit by taking advantage of baseless fears. Among the products criticized were tummy wraps for expectant mothers and shielding products such as headgear and bed netting. Physicians were … [Read more...]
BU Researchers Working on Light-Based, EMI Immune Wireless Networks
Boston University’s College of Engineering is one academic partner launching a major program, under a National Science Foundation (NSF) Grant, to develop the next generation of wireless communications technology based on visible light instead of radio waves. BU researchers (shown at left)expect to piggyback data communications capabilities on low-power, light-emitting diodes … [Read more...]
EMI and Other Factors to Be Examined in Qantas Airbus Plunge
EMI and Other Factors to Be Examined in Qantas Airbus PlungeThe Australian Transport Safety Bureau (ATSB) is carrying out an investigation into what caused a Qantas Airbus A330-300 to make an uncontrolled climb and dive that resulted in injuries to 74 passengers, with 51 requiring hospital care for serious injuries including fractures, lacerations, and spinal damage. Qantas … [Read more...]
Robert Yff, Founder of Panashield, Dies after Fall
Robert Yff, age 77, a longtime Norwalk resident, died Sunday October 19, 2008 of injuries sustained from a fall at the summer home he built on Fire Island. Born in Venezuela of Dutch parents on January 22, 1931, he was the son of the late Johannes Yff and Sophia Magdalena Korlaar Yff. Robert was the husband of Mary Margaret "Peggy"Girard Yff. He was pre-deceased by his first … [Read more...]
Radio Operators Oppose Proposed Change to Disturbance Limits of CISPR 22
Recently there has been a flurry of activity opposing the proposed change to the disturbance limits of CISPR 22. Objections focus on proposed Power Line Telecommunications (PLT) disturbance limits, which would be relaxed by 18 dB. These disturbance limits for Power Line Telecommunications (PLT) systems are defined by the standard CISPR 22 and its European equivalent EN 55022 … [Read more...]
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