By changing the frequency of a radio transmission many times a second, causing it to leap around in an apparently random fashion, a radio signal could be made almost impossible to intercept.
The Australian research focused on the thermal effects or specific absorption rate (SAR) of radio frequency radiation - a measure of its actual effects on brain tissue, whereas the earlier study simply looked at electromagnetic radiation levels.
Deployment of radio frequency identification (RFID) chips, after years of hype and more than a few false starts, gets going in earnest.
This frequency is close to the lower band of the highest radio frequency band known as extremely high frequency which goes from 30 to 300 GHZ.
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This development is made possible by a new wave of technology: radio-frequency ID chips the size of pepper grains, broadband wireless and Web-based "dashboards" enabling monitoring and management.
The radiation just spread out into space - where it still is and can be detected as weak waves of radio frequency.
The concerns stem from the emissions of radio frequency (RF) radiation by both the handsets and the base stations that transmit and receive the signals.
Although they have not been found to cause any harm, the cables on conventional pylons, which transmit a three-phase alternating current, generate a strong electric field and a continuous buzz of low-frequency radio waves.
ADS-B promises to make air traffic control easier, cheaper and in many ways safer by allowing planes to transmit their locations by radio frequency instead of depending on towers to use radar to track and coordinate them.
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You can knock one of these nuclei from up to down by bathing it in radio waves of a particular frequency (exactly which frequency depends on the element).
D. became a leading center of RFID (radio frequency identification) research and how Cornell University in little Ithaca, N.
CowView uses a type of RFID (radio frequency identification) called UWB (ultra-wideband) technology.
This year his mum might be persuaded to upgrade him to pair of RFID (radio frequency identification) tagged Smarter Socks.
One of the next big things was Radio-frequency identification (RFID) contactless payment technology, which was said to provide a simple method of payment that could reduce time spent in checkout lines.
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They acknowledge the difficulties caused by choosing radio-frequency chips instead of a system where direct contact must be made with the reader.
In an announcement of sorts yesterday, DARPA reportedly said that the project's goal is to use "set of handheld devices" to track down a specific "signal emitter of interest" using radio frequency geolocation, and presumably some other measures they're not about to dish the details on.
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Its state-of-the-art radio frequency (RF) performance exceeds requirements established by EMVCo and the NFC Forum.
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An ablation sends radio frequency energy into the part of the heart that is causing the irregular heartbeat and kills the cells that cause the problem.
Yes, of course fire trucks need a radio frequency.
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It's always nice to see an old tech stage a comeback and this time it's happening around the coasts of Europe, with nine low-frequency radio transmitters substituting for GPS' satellite-based system. eLoran's radiowave-based system is stronger than satellite signals and less jammable, based on the Loran system that was previously used for shipping navigation by both the British and US navy over 50 years ago.
The company has been selling a new kind of anticheat chip, embedded with radio-frequency identification technology.
Radio frequency identification and tracking technology were undreamt of just a few years ago.
Gaming Partners has also been selling older casinos a new kind of anticheat chip, embedded with radio-frequency identification technology.
Instead of price tags, we could have radio frequency identification tags that calculate price as you touch the item.
Colorado MEDtech, of Boulder, Colorado, makes an assortment of medical equipment from catheters and respiratory equipment to radio frequency amplifiers used in magnetic resonance imaging systems.
The new system, which will become fully operational next year for much of China, is expected to use the same radio frequency as Europe's Galileo system and the U.S. GPS, making Western attempts to jam communications much more difficult.
It also likes companies that are working on making smaller batteries, like Qynergy, a New Mexico-based company working on radioisotope batteries, and Infinite Power Solutions, a Colorado developer of thin-film batteries that can power RFID (Radio Frequency Identification) tracking chips.
Radio-frequency weapons could be used to go after critical nodes of the electrical infrastructure in a more tactical way.
Linen Technology Tracking, a Miami-based company, recently patented a radio-frequency identification chip designed to keep real-time inventory of frequently misplaced or stolen goods.
Strum down a list of radio stations and you can feel as your fingertip passes over each frequency number.
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