A $5.5 billion upgrade to the Global Positioning System moved a step closer to launch this week when a prototype arrived at a Lockheed Martin complex in Colorado to begin months of tests.
Telecom
Dec 13, 2011
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A US military reconnaissance plane came under electronic attack from North Korea and had to make an emergency landing during a major military exercise in March, an aide to a lawmaker said Friday.
Other
Sep 9, 2011
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North Korea is upgrading jamming devices to disrupt South Korean military communications, Yonhap news agency said Tuesday, citing a defence ministry report.
Other
Sep 6, 2011
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LightSquared, a Virginia-based company that plans to build a nationwide wireless broadband network, is proposing to adapt its network so as not to interfere with GPS systems.
Telecom
Jun 20, 2011
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Fujitsu Laboratories today announced that it has successfully developed the world's first transmitter/receiver (T/R) module using gallium-nitride (GaN)high electron mobility transistor (HEMT) technology that features an output ...
Electronics & Semiconductors
Jun 6, 2011
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Successfully taking a small radio receiver intended for space applications and creating a full-featured radio frequency system, initially designed for a Marine Corps unmanned aircraft, would not have been possible without ...
Engineering
Feb 25, 2011
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Satellite TV without having to set up a receiver dish. Digital radio on your mobile phone without your batteries quickly running flat. The advanced calculations needed for these future applications are made possible by a ...
Computer Sciences
Oct 19, 2010
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A problem that rendered as many as 10,000 U.S. military GPS receivers useless for days is a warning to safeguard a system that enemies would love to disrupt, a defense expert says.
Telecom
Jun 1, 2010
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(AP) -- The Air Force says it performed no advance testing on the specific type of military GPS receiver that had problems picking up locator signals after a change in ground-control software.
Telecom
May 17, 2010
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(PhysOrg.com) -- Ice loss from the Greenland ice sheet, which has been increasing during the past decade over its southern region, is now moving up its northwest coast, according to a new international study.
Earth Sciences
Mar 23, 2010
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