4G chipmaker Sequans Communications S.A. has announced the results of a technical trial in which the interference-mitigating capabilities of the company’s AIR (advanced interference rejection) technology were tested. The trial took place in a laboratory environment and was completed in cooperation with Japanese mobile operator Softbank. According to Sequans Communications, a … [Read more...]
Microwave Signal May Have Caused Presidential Inauguration Video Interference
Officials have reported that interference with a microwave signal may have been the cause of audio and video problems experienced during President Obama’s inauguration in mid-January. The interference problems affected one of 12 giant video screens erected for the ceremony, and officials have thus far been unable to determine the source of the interference. According to Tom … [Read more...]
China Considering Development of Autonomous Electromagnetic Bus
The Chinese government is investigating the possibility of expanding Shanghai’s s transportation system with the introduction of a robotic electromagnetic bus. According to the Chinese government, the electromagnetic bus will be equipped with a variety of sensors designed to keep the bus on the road and prevent any collisions. Magnetic units will be buried under specific roads … [Read more...]
New EMC Vehicle Testing Facility Opens in Taiwan
An electromagnetic compatibility testing facility for vehicles has been opened at the Automotive Research and Testing Center in Lukang, Changhua County, Taiwan. According to the Republic of China (ROC) Ministry of Economic Affairs, the facility is capable of providing testing for components, systems and entire vehicles. The facility is equipped with a large anechoic chamber, a … [Read more...]
Regulatory Compliance Mark for Australia and New Zealand Webinar
Title: Regulatory Compliance Mark for Australia and New Zealand WebinarDate: February 14 2013Location: OnlineDescription: Washington Laboratories will be hosting a webinar on the new Australian Communications and Media Authority (ACMA) and Electrical Equipment Safety Scheme (EESS) regimes, including testing, certification and administrative requirements.Learn More: Click here … [Read more...]
Measurement of Passive Intermodulation in Filters
“IEC 62037-5:2013(E) defines test fixtures and procedures recommended for measuring levels of passive intermodulation generated by filters [that are] typically used in wireless communication systems. The purpose is to define qualification and acceptance test methods for filters for use in low intermodulation (low IM) applications.” Learn more. … [Read more...]
Thermocouple Power Sensors Offer Improvement in Measurement Speed and Accuracy
Agilent Technologies, Inc. has announced the Aglient U8480 series of USB thermocouple power sensors. According to the company, the new U8480 series offers “the best accuracy in Agilent’s power-meter and sensor portfolio” and is the company’s first power sensor capable of measuring down to DC. The new series of thermocouple power sensors offer test engineers “the ability to … [Read more...]
Is There a Simple Method to Choose a Filter for a Given Purpose?
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: Is there a simple method to choose a filter for a given purpose? Answer: No. Sorry! But we can use appropriate design techniques based on the CM and DM impedances of both the source and load circuits, and the CM and DM … [Read more...]
New Controversial Report Suggests Evidence for Electromagnetic Field Health Risks Has Increased
A new report on the health effects of electromagnetic fields and radio frequency radiation from power lines, electrical wiring, appliances and hand-held electronic devices has been published by the BioInitiative Working Group, suggesting that evidence for health risks has increased since 2007. The BioInitiative Working Group grew out of the Bioelectromagnetics Society’s 2006 … [Read more...]
Sun Enters Peak of Magnetic Activity Cycle; Scientists Theorize Solar Eruptions Could Endanger Power Grids
Earlier this month, the National Weather Service’s Space Weather Prediction Center reported that a “type IV radio emission”—a major solar eruption of charged particles known as a coronal mass ejection (CME)—was approaching the earth. CMEs are capable of disrupting Earth’s magnetic field and triggering a geomagnetic storm that could potentially damage communications satellites, … [Read more...]
- « Previous Page
- 1
- …
- 283
- 284
- 285
- 286
- 287
- …
- 647
- Next Page »
