Jamming systems play secret role in Iraq

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Smoke billows from tires of a U.S. military truck hit by an IED near the Iraqi-Syrian border in October 2005.


Jamming systems play secret role in Iraq
By Peggy Mihelich
CNN


CNN) -- A silent, invisible battle is being fought against roadside bombs in Iraq. Though the military doesn't like to advertise their use, electronic jamming systems are playing a key role in neutralizing the threat.

"Any weapon we had against IEDs, was utilized including jamming technology," said Jason Spencer, 29, an Oklahoma City, Oklahoma, engineer who served with the Army in Iraq in 2005.

Vehicle mounted electronic jammers attempt to block a signal going to a radio-controlled IED. The military also uses portable backpack jammers.

"The sophistication of IEDs definitely increased during my time in Iraq," said Spencer. "There was a definite increase in remote detonation."

A signal going to a remote-controlled IED operates on a radio or infrared frequency.

Jamming devices, known as Counter Radio Controlled Improvised Explosive Device Electronic Warfare, or CREW systems, attempt to intercept or block a signal before it reaches its intended target, preventing detonation.



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