Military Embedded Systems

RQ-11B Raven UAS navigates using Rockwell Collins GB-GRAM-M GPS receiver


August 14, 2013

RQ-11B Raven UAS navigates using Rockwell Collins GB-GRAM-M GPS receiver

WASHINGTON. Rockwell Collins announced at the 2013 Association for Unmanned Vehicle Systems International (AUVSI) conference testing of the Rockwell Collins GB-GRAM-M GPS receiver cards integrated with the RQ-11B Raven Unmanned Aerial System (UAS). This is the first time any UAS has used live Military code (M-code) signals to pilot accurately.

The RQ-11B Raven launched from Holloman Air Force Base, NM, and navigated using position, time solution, and velocity information from the GB-GRAM-M Receiver processing a live M-code signal. The receiver was tested in a hostile radio frequency environment.

“This milestone is a major step forward in providing enhanced integrity, exclusivity, and improved anti-jam capabilities to our military, and adds to our rich legacy of achieving GPS technology firsts at Rockwell Collins,” says Mike Jones, VP and General Manager, Communication and Navigation Products, Rockwell Collins.

This testing is in support of a congressional mandate to implement M-code technology on all U.S. Department of Defense (DoD) platforms as part of the Modernized User Equipment (MUE) development program.

More information is available at Unclassified information covering the development and acquisition strategies of the GRAM program can be downloaded from


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