News tagged with radio signal

Radio signals research scans new horizons

A study at the University of Leicester aims to understand the reasons why radio signals sometimes act unpredictably- travelling beyond the horizon and interfering with other signals.

Jun 22, 2010
1 / 5 (1) 2

First radio tracking of tropical orchid bees

Blue-green orchid bees zip through increasingly scarce patches of tropical forest pollinating rare flowers. For the first time, researchers at the Smithsonian Tropical Research Institute track unique signals ...

May 26, 2010
5 / 5 (3) 0 | with audio podcast

Widening the search for extraterrestrial intelligence

"The Search for Extraterrestrial Intelligence (SETI) has been dominated for its first half century by a hunt for unusual radio signals. But as he prepares for the publication of his new book The Eerie Silence: Are We Alone?," ...

Mar 01, 2010
4.3 / 5 (10) 1

GPS Jamming Devices Pose Many Threats (w/ Video)

(PhysOrg.com) -- The latest GPS jamming devices are now being used by car thieves in the UK to render stolen cars and trucks undetectable by law enforcement. These devices also pose a threat to airlines and ...

Feb 25, 2010 report
4.6 / 5 (10) 16 | with audio podcast

Secure radio signal for central locking

(PhysOrg.com) -- Remote central locking is among the most convenient aspects of modern motoring. Transmission of the radio signal that activates the system is not particularly secure, however. A new encryption ...

Feb 01, 2010
5 / 5 (1) 0

Making it easier to save energy

Fraunhofer scientists are developing programs that help show at a glance how much energy devices are consuming. At the GSMA Mobile World Congress in Barcelona, the researchers will be showing how a cell phone can help save ...

Jan 15, 2010
2 / 5 (2) 0

The Sun's Sneaky Variability

Every 11 years, the sun undergoes a furious upheaval. Dark sunspots burst forth from beneath the sun's surface. Explosions as powerful as a billion atomic bombs spark intense flares of high-energy radiation. ...

Oct 28, 2009
4.8 / 5 (11) 5