Next Generation Anti-Jam GPS Sensor for F-35 Joint Strike Fighter

The system consists of a variety of key technologies including the Raytheon digital anti-jam receiver (DAR) and a multi-element, low observable antenna developed by Ball Aerospace, under contract to Raytheon SAS.

"While most people believe that GPS technology is pretty standard stuff, the type of reliable and robust GPS system we are developing for the F-35 takes the capability to a whole new level. It allows us to support the advanced needs and requirements of our customer. The digital anti-jam GPS receiver will give the F-35 platform a unique edge through utilizing the most advanced technology available today."

"The F-35 GPS system is a leap-ahead aircraft technology, integrating state-of-the-art and next generation technology. This means that the F-35 will be operating the most precise, effective navigation and tracking system out there," said Kimberly Binegar, F-35 GPS program manager for Raytheon's PGS business area.

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hmmm...sounds pretty effective
Is this thing alredy fitted on the raptor ?