Compact GPS jammers that run from a car are available to buy, although use is prohibited.
They had used GPS jammers to prevent the vehicles being tracked after the thefts.
In Germany, meanwhile, some lorry drivers have used jammers to evade the country's GPS-based road-tolling system.
Canadian firm Med-Eng is building jammers for the Marines, reports military contractor General Dynamics.
Along with jammers, troops use air surveillance, robots, blast-resistant vehicles and mine rollers as countermeasures.
By the end of 2007, JIEDDO will have funded more than 30, 000 jammers for Marine and Army units.
The company has 1, 500 employees in and around Clifton working on electronic jammers, information systems and tactical communications for all of the military services.
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The Navy, which oversees the CREW program, contracted BAE Systems to produce 3, 800 wearable jammers to be fielded in Afghanistan and Iraq in 2008.
Many companies have been tapped to supply jammers to coalition forces.
Jammers also block incoming calls, which means that if used for an extended period you prevent anyone in your vicinity from hearing pressing, even emergency, news.
The money he had found from those efficiencies would be redirected towards unmanned aerial systems, new electronic jammers for the navy, a penetrating bomber and some other hardware upgrades.
We find ourselves with this game as a result of some some weird notion of keeping the culture surrounding the legendary jammers current in an age of free-to-play games.
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In November America's National Space-Based PNT Advisory Board said deliberate disruption of GPS was becoming more common, and that the systems in place to find and stop jammers were insufficient.
The third program driving sector consolidation is about as far removed from the world of stealthy fighters and gee-whiz jammers as you can get, and still be in the defense business.
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Or people started carrying around hidden cell-phone jammers?
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We'd be smug and recommend that prisons invest in some cellphone jammers (see the previous post), but apparently they interfere too much with the radios used by prison guards, so how about doing the next best thing and just start eavesdropping on their calls?
Worse still, Western intelligence sources believe the Soviets themselves may be operating some of the more sophisticated equipment Moscow has exported to Iraq, like jammers being employed to try to deny U.S. and Saudi Airborne Early Warning and Control System (AWACS) aircraft vital information concerning Iraqi military movements.
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The price-tag of a legacy fighter may appear to be lower, but if it is less likely to survive combat, or its survival depends on support from electronic jammers and other helpers that a stealthy fighter does not need, then in the end the plane with the higher price-tag may turn out to be cheaper.
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