Space

June 25, 2014

AEHF-3 protected communications payload, built by Northrop Grumman, completes on orbit testing ahead of schedule

REDONDO BEACH, Calif.†- The protected communications payload built by Northrop Grumman for the U.S. Air Force’s third Advanced Extremely High Frequency satellite has completed on orbit testing ahead of schedule without any discrepancies, matching the high performance levels of others the company has provided.

Launched Sept. 18, 2013, aboard a United Launch Alliance Atlas V rocket, AEHF-3 reached its final position in geostationary orbit in January 2014. The payload began transmitting as planned when it was activated for the first time at that point, said Stuart Linsky, vice president, communication programs, Northrop Grumman Aerospace Systems.

An extensive series of on-orbit payload tests that followed was successfully completed in February. The Air Force said its 4 th Space Operations Squadron at Schriever Air Force Base, Colo., took over satellite operations in March from the Space and Missile Systems Center in Los Angeles.

As a result, AEHF-3 has been integrated in a constellation of satellites forming a “ring of protection” around the Earth that provides the only global, highly secure, protected, survivable communications for warfighters operating on ground, sea and air platforms.

The constellation now includes five Milstar and three AEHF satellites, all communicating with each other via satellite-to-satellite crosslinks ñ a capability exclusive to Milstar and AEHF within the MILSATCOM enterprise. Northrop Grumman has provided all payloads for AEHF satellites to the prime contractor, Lockheed Martin Space Systems, Sunnyvale, Calif.

“The AEHF-3 payload turned in a stellar performance throughout on orbit testing,” Linsky said. “With the third AEHF satellite seamlessly integrated into the ‘ring of protection,’ the Northrop Grumman-built crosslinks demonstrated a new first ó operations at extended data rates [XDR] on both sides of an AEHF satellite. That wasn’t possible with only two AEHF satellites on orbit.”

Testing involved establishing communications networks between combinations of EHF terminals on the ground that use Milstar’s medium data rates and other terminals equipped to handle the wideband AEHF XDR. They exercised and further proved payload software that configures worldwide networks, Linsky noted.

“The payload’s software-based communication network architecture allows us the unprecedented ability to reconfigure assets as needed for an evolving battlefield,” Linsky said. “This software-based architecture has enabled Northrop Grumman to deliver new capabilities our leaders and warfighters requested through the Milstar constellation for all 20 years since the launch of the first Milstar in February 1994.”

Advanced EHF satellite payloads uniquely contain a full range of features that provide effective protection against the wide range of threats from capable adversaries. These features include anti-jamming for the strongest jammers, low probability of detection and intercept, rapid recovery during a nuclear event, the ability to operate through scintillation, greatly reduced risk from physical attack to ground systems, and significant protection from cyber attack.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines August 28, 2014

News: After F-15 jet crash in Virginia, rescue helicopters search for pilot - Helicopters are searching for an Air National Guard pilot after his F-15 jet crashed in the mountains of Virginia this morning, military officials said.   Business: U.S. Air Force 3DELRR contract expected soon - The U.S. Air Force could award the contract for its...
 
 

News Briefs August 28, 2014

Russian directing new offensive in Ukraine The Obama administration believes Russia is leading a new military counteroffensive in Ukraine. U.S. State Department spokeswoman Jen Psaki says Russia has sent additional columns of tanks and armored vehicles into its neighbor’s territory. She says the incursions suggest a ìRussian-directed counteroffensive is likely underway in the contested e...
 
 
LM-C5

Double Deuce

A U.S. Air Force crew ferried the 22nd C-5M Super Galaxy from the Lockheed Martin facilities in Marietta, Ga., Aug. 25. Aircraft 86-0011 was ferried by a crew led by Maj. Gen. Dwyer L. Dennis, Director, Global Reach Programs, O...
 

 
Northrop Grumman photograph

First ever RQ-4 Global Hawk hits 100th flight on NASA mission

Northrop Grumman photograph A historical look at the first Global Hawk (AV1) during its maiden flight over Edwards Air Force Base, Calif., on Feb. 28, 1998. AV1 has made history again with its 100th flight in support of NASA en...
 
 

Northrop Grumman’s CIRCM system completes U.S. Army flight testing

Northrop Grumman’s Common Infrared Countermeasures system recently completed another round of U.S. Army testing by demonstrating its capabilities on a UH-60M Black Hawk helicopter. The flight test was conducted at Redstone Arsenal in Huntsville, Ala., by the Redstone Test Center. The Northrop Grumman CIRCM system was subjected to rigorous conditions over a six-week period, after...
 
 
NASA photograph by David Olive

NASA completes successful battery of tests on composite cryotank

https://www.youtube.com/embed/qkGI6JeNY0E?enablejsapi=1&rel=0 NASA photograph by David Olive One of the largest composite cryotanks ever built recently completed a battery of tests at NASA’s Marshall Space Flight Cen...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>