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Interference Technology

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Mains Transients Cause Spurious Switch-on of Toaster, Burns Gas Station Down

 

Transients in the mains supply of a gas station in the USA (called a petrol station in the UK) caused the spurious switch-on a microporcessor-controlled toaster one night after staff had all gone home.  Since the microprocessor wasn't in its normal programme, it didn't switch the toaster off.  The manufacturer of the toaster had omitted to include a thermal fuse, so the gas … [Read more...]

ARRL Comments on FCC 5 MHz Proposals

 

The ARRL has filed its comments in response to the FCC’s Notice of Proposed Rulemaking (NPRM) in ET Docket No. 10-98, which was issued in response to an ARRL Petition seeking modest improvements in operating privileges in the so-called “60 meter” band, which presently consists of five channels on which General, Advanced and Amateur Extra class licensees.Read more from the ARRL. … [Read more...]

Japanese Gov’t Warns U.S. Forces About Baby Monitor RF Signals

 

Japan’s Internal Affairs and Communications Ministry has warned U.S. forces in Japan that unauthorized radio waves emitted by baby monitors used in the homes of military personnel are disrupting radio transmissions nearby for taxi and trucking services.Some foreign-made baby monitors, often used by families of U.S. military and civilian personnel stationed in Japan, emit radio … [Read more...]

NHTSA Toyota EMI Report due This Month

 

The National Highway Traffic Safety Administration-commissioned study by the National Aeronautics and Space Administration into Toyota’s electronic controls and whether they can be affected by electromagnetic interference is due out later this month.Read more from Consumer Reports. … [Read more...]

Over 150,000 Cables Help Allied Forces Defeat IEDs

 

The critical systems U.S. soldiers, sailors, airmen and marines use to jam radio-controlled improvised explosive devices (IEDs) rely on RF cables designed and manufactured at the Megaphases facility in Stroudsburg, Pa. Over 150,000 MegaPhase cables are in use protecting the Warfighter in overseas contingency operations. These cables are used in tens of thousands of jamming … [Read more...]

Tradeshows are a quick, and cheap research opportunity in EMC.

 

Issue: 4 August 18, 2010 Please note that the text below is from Issue 4 of the EMC Business Bulletin. Most companies in the EMC marketplace don’t have the resources for in-depth market research, but tradeshows and conferences are a quick and inexpensive way to get feedback from your customer / prospect base. Think about it - while you are standing in a booth for a few days, … [Read more...]

Coping with Wi-Fi’s Biggest Problem: Interference

 

Over the last 10 years 802.11 technology has made remarkable strides, getting faster, stronger and more scalable. But one problem still haunts Wi-Fi: reliability. Radiofrequency interference can be generated by almost any device that emits an electromagnetic signal -- from cordless phones to Bluetooth headsets, microwave ovens and even smart meters. But what most companies … [Read more...]

Residents Express Concern over SmartMeter Radiation

 

At a recent California Public Utilities Commission meeting, a group of people, some who said they suffer from electro-hypersensitivity caused by frequent exposure to electromagnetic waves from cell towers and other wireless technologies, called for a moratorium on PG&E SmartMeter installations because of concerns over electromagnetic radiation exposure. Read more from ABC … [Read more...]

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