The Air Force has awarded Northrop Grumman [NOC] two contract modifications to continue operating and maintaining an airborne communications and information system for situational awareness and command and control, the company said recently.

The modifications worth a combined $156 million call on Northrop Grumman to keep running the Battlefield Airborne Communications Node (BACN) systems on three E-11A Bombardier Global Express BD-700 aircraft and three EQ-4B Block 20 Global Hawk unmanned aerial vehicles. That covers the work on the overseas operations through June of next year.

The second modification involves the platform maintenance support for the three E-11As through February 2013.

BACN features a suite of computers and radio systems that bridges and extends voice communications and battlespace information from numerous sources, Northrop Grumman said. It was first deployed to U.S. operations in Afghanistan in 2008, the company said.