久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

  Home>News Center>World
         
 

US deploys satellite jamming system
(Agencies)
Updated: 2004-11-01 12:16

The U.S. Air Force quietly has put into service a new weapon designed to jam enemy satellite communications, a significant step toward U.S. control of space.

The so-called Counter Communications System was declared operational late last month at Peterson Air Force Base in Colorado Springs, the Air Force Space Command said on Friday in e-mailed replies to questions from Reuters.

The ground-based jammer uses electromagnetic radio frequency energy to knock out transmissions on a temporary and reversible basis, without frying components, the command said.

"A reversible effect ensures that during the time of need, the adversary's space-based capability to threaten our forces is diminished," said Capt. Angie Blair, a spokeswoman. "Following the time of need, the space-based capabilities used by the adversary can return to its original state."

The device appears to have been put into service considerably earlier than had been projected by the Air Force as recently as February.

At that time, a long-range planning document, dubbed the Transformation Flight Plan, said such a system would let the United States by 2010 "deny and disrupt an adversary's space-based communications and early warning" of attack.

U.S. military control of space is one of four missions spelled out under a national space policy adopted by former president Bill Clinton in 1996. The goal is to make sure U.S. forces have unhindered access to space and space-based services and to deny an enemy any similar benefits.

The U.S. military has experimented with a range of "antisatellite" (ASAT) weapons, including lasers, to knock out enemy craft by destroying them or damaging their sensors.

Theresa Hitchens, vice president of the private Center for Defense Information in Washington, welcomed the new system on the ground it would not create debris that could threaten global use of space and would not destroy satellites, only jam them temporarily.

"Unfortunately, it seems we are not going to limit our quest for 'space control' to benign systems," she said, citing the danger of a space arms race.

The deployment was disclosed without fanfare late last month at a technical conference of the American Institute of Aeronautics and Astronautics in San Diego, California.

The system is operated by the 76th Space Control Squadron, a unit created in 2001 to explore technologies for controlling space, Brig. Gen. Larry James, vice commander of the Space and Missile Systems Command told the conference.

The Air Force Space Command, in its e-mailed replies, said the system was built from off-the-shelf commercial equipment, and made up an antenna, transmitters and receivers that can be loaded into a trailer and moved from place to place.

Three such systems had been delivered since late last year, the command said. The program's budget for fiscal 2005 totaled $6.2 million, according to the Congressional Research Service.

The primary integrator was Northrop Grumman Corp.'s . Mission Systems business unit in Redondo Beach, California, said Joe Davidson, a Space and Missile Center spokesman.

Citing "operational security" concerns, military officials declined to discuss how the jammer worked but equated it with traditional Air Force electronic warfare weapons that have been used since World War 2 to deceive, disrupt, deny, degrade or destroy targets.



 
  Today's Top News     Top World News
 

Two Chinese men to circle space for five days

 

   
 

Bush, Kerry in tight sprint to finish

 

   
 

New limits set on car fuel consumption

 

   
 

US trouser quota against WTO principles

 

   
 

Iran parliament OKs nuke enrichment bill

 

   
 

Poisonous gas gush kills 15 Chinese miners

 

   
  Hostages in Afghanistan plead for release
   
  Bush, Kerry in tight sprint to finish
   
  Fresh American troops arriving in Iraq
   
  Rocket hits hotel in north Iraq, kills 15
   
  Iran parliament OKs nuke enrichment bill
   
  WHO calls summit to address flu pandemic
   
 
  Go to Another Section  
 
 
  Story Tools  
   
  News Talk  
  Are the Republicans exploiting the memory of 9/11?  
Advertisement
         
主站蜘蛛池模板: 国产精品黄网站 | 免费一级做a爰片性色毛片 免费一极毛片 | 朝鲜美女免费一级毛片 | 美女张开双腿让男人桶 | 99精品免费久久久久久久久日本 | 国产女人在线观看 | 99手机在线视频 | 六月成人网 | 中文字幕日韩国产 | 一区二区3区免费视频 | 毛片大全在线观看 | 超清首页 国产 亚洲 丝袜 | 成人免费看 | 亚洲综合免费 | 亚洲韩国欧美 | 欧美日韩国产58香蕉在线视频 | 亚洲国产欧美一区二区欧美 | 一级看片免费视频 | 久久午夜国产片 | 日本一极毛片兔费看 | 精品午夜国产在线观看不卡 | 亚洲国产高清在线精品一区 | 五月天激激婷婷大综合蜜芽 | 波多野结衣手机视频一区 | 精品国产三级a在线观看 | 国产一级做a爰片在线看 | 中文字幕久久久 | 粉嫩高中生的第一次在线观看 | 国产精品爱久久久久久久三级 | 三级毛片免费 | 欧美做a一级视频免费观看 欧美做爱毛片 | 6一10周岁毛片免费 6一12呦女精品 | 午夜三级在线 | 免费黄色成人 | 在线视频欧美亚洲 | 看一级毛片 | 很黄的网站在线观看 | 成人毛片网 | 欧美日韩精品国产一区二区 | 美女视频黄a视频美女大全 美女视频黄a视频免费全程 | 久久久久国产成人精品 |