On Wednesday, phones across the country will light up with a special message from the president as FEMA tests its wireless alert system.Getting a message out to this many phones has never been done before. For a brief moment, a huge chunk of U.S. cellphone infrastructure will all be doing the same thing.That's more than 100 providers, over a good chunk of the estimated 320,000 cell sites in the U.S. Hundreds of millions of phones could go off in the same half-hour window.With this test, FEMA plans to make sure all those different parts work the way they're expected to so it can fix any parts that don't, in case they're ever needed for real.Because things are usually bad enough for the cellular network during an emergency. Natural disasters frequently knock out power to cell towers, sometimes over a wide area. And even when the towers stay on, the increased traffic while everyone tries to get messages out can overload the system. SEE MORE: Giant Balloons … [Read more...] about Why We Need A Nationwide Cell Phone Alert Test
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News Sports Entertainment Classifieds 70° Full Menu 70° eEdition Customer Service Customer Service SacBee Rewards About Us About Us Contact Us Apps Mobile & Apps Twitter, Facebook, Google+, YouTube News in Education (NIE) Newsletters Local Sacramento Region Arena City Beat Crime Local Govt Salary Database The Homeless Marcos Bretón Transportation Education Environment Health & Medicine Traffic Conditions Weather Communities Elk Grove Folsom/El Dorado Roseville/Placer Yolo Sports Sports Kings Kings Corner with Jason Jones NBA News 49ers with Matt Barrows Giants Oakland A's High School Sports Joe Davidson More Sports Raiders NFL News MLB News River Cats Soccer Colleges Golf Auto Racing Politics Politics Capitol Alert State Workers The California Influencer Series Local Elections PoliGRAPH State Worker Salary Database Legislative Gifts Elections Local Elections California … [Read more...] about In emergencies, cell phone alerts can be too slow to save lives. Can the system be fixed?
The US Supreme Court stepped into the long-running debate over wireless and health on Thursday when it vacated a Berkeley, California, law requiring retailers to warn customers about possible wireless radiation exposure.Berkeley's "Right to Know" ordinance, which went into effect in 2016 after years of discussion, mandated that anyone buying a cell phone in the city receive a notice advising them that by carrying a phone in a pocket or bra, they could be exposed to radio frequency emissions that exceed FCC guidelines.Soon after it was implemented, CTIA, the wireless industry's lobbying arm in Washington, sued to block the law, arguing that it violated the freedom of speech of retailers since it required them to post "inflammatory" messages. But in April 2017, the 9th US Circuit Court of Appeals upheld the ordinance saying it was in the public interest and based on FCC information.As part of Thursday's decision, the Supreme Court returned the case to the lower court for further … [Read more...] about Supreme Court decision spells danger for Berkeley cell phone radiation law
By Craig Timberg | Washington Post June 1, 2018 at 9:46 am WASHINGTON – A federal study found signs that surveillance devices for intercepting cellphone calls and texts were operating near the White House and other sensitive locations in the Washington area last year. A Department of Homeland Security program discovered evidence of the surveillance devices, called IMSI catchers, as part of federal testing last year, according to a letter from DHS to Sen. Ron Wyden, D-Oregon, on May 22. The letter didn’t specify what entity operated the devices and left open the possibility that there could be alternative explanations for the suspicious cellular signals collected by the federal testing program last year. The discovery bolsters years of independent research suggesting that foreign intelligence agencies use sophisticated interception technology to spy on officials working within the hub of federal power in the nation’s capital. Experts in surveillance technology say … [Read more...] about Signs of sophisticated cell-phone spying found near White House
The problem with scientific papers is that they hide about half of the interesting stuff. Recently, a group of scientists set out to directly measure a property of a laser, something that goes by the exciting-sounding name of "spatial hole burning." In the process, though, they discovered how to turn a laser into a very high-speed microwave device, a discovery that may make the next generations of Wi-Fi and mobile data much easier to implement. Was this discovery an accident, or did the scientists know that the application potential was there before they started? The paper is silent on the issue. But are we seriously going to put a laser in every cell phone? Your laser is full of holes When you form a picture of light from a laser, you might imagine something like light from a laser pointer: red or green, a nice directed beam, possibly a bit sparkly when you shine it on the wall. Lasers emit light with a single pure color, right? Unfortunately, life is not that simple. A laser needs … [Read more...] about Laser-powered cell phone transmitters could be in your future