quarta-feira, 29 de abril de 2015

Military & Aerospace Electronics

Electronic warfare transmitters

 from Cobham chosen for radar 

jammers aboard Navy EA-18G jets






PATUXENT RIVER NAS, Md., 13 March 2015. U.S. Navy electronic
 warfare (EW)experts are looking to Cobham plc to provide RF
 transmitters for electronic jammers aboard the Navy EA-18G jet 
aircraft that are designed to spoof and blind enemy low-frequency
 radar systems.
Officials of the Naval Air Systems Command at Patuxent River Naval
 Air Station, Md., announced their intention Wednesday to award a 
contract to the Cobham plc Advanced Electronic Solutions segment in
 Lansdale, Pa., to provide low-band transmitters (LBT) for the
 AN/ALQ-99 jammers on the EA-18G aircraft.
The upcoming contract involves the AN/ALQ-99 Low-Band Consolidation
 (LBC) system now in production. The value of the
 contract has yet to be determined.






As part of the EA-18G Growler jet's electronic warfare suite, the
 LBT will provide the capability to jam hostile, low-frequency radar
 and communications signals in a tactical environment, Navy officials say.
The proposed low-band transmitter contract will call for Cobham 
engineers to carry out an engineering change to modify the existing 
LBT system and will include the design, manufacture, integration, 
and test of the LBC kit.
The effort also will ask Cobham to deliver two test articles to support 
future qualification and testing of the modified transmitter, as well as 
applicable technical data.
Navy officials say they plan to award the upcoming 18-month contract to
 Cobham sole-source because the company is the only responsible 
source able to provide the jammers, and no other supplies or services
 will satisfy Navy requirements.
Cobham is the sole system designer, developer, integrator, and 
manufacturer of the LBT, and the company has unique expertise in
 the design, engineering, and performance details of the LBT
 necessary to design the LBC kit and to integrate the kit into the 
existing LBT transmitter and AN/ALQ-99 system, Navy officials say.
Low-frequency radar, for which the AN/ALQ-99 low band transmitter
 is designed to counter, is especially effective against stealthy aircraft
 and other targets with low radar cross sections.
This kind of radar, however, produces a relatively large amount of
 clutter, so requires advanced digital signal processing that removes
 unwanted signals to be effective against stealth targets.
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The Navy's EA-18G Grower, built by the Boeing Co., is a carrier-based 
combat jet designed for electronic jamming, electronic countermeasures, and 
other kinds of electronic warfare missions. It has replaced the EA-6B Prowler
 on Navy aircraft carriers.
Companies interested in subcontracting with Cobham on the AN/ALQ-99
 low-band transmitter work should contact Rebecca Hettel at Cobham by
 phone at 215-996-2276, or by email at rebecca.hettel@cobham.com.
For additional information contact Cobham Advanced Electronic Solutions
 online atwww.cobham.com, or Naval Air Systems Command at www.navair.navy.mil.

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