Vivienne Machi is the military space editor for Aviation Week. She has written about U.S. and international military and space tech since 2016 from bureaus in Washington, Los Angeles and Stuttgart, Germany. Her byline has appeared in outlets including Defense News, Via Satellite, Foreign Policy, Defense Daily, National Defense Magazine and Business Insider.
Experts from the U.S. and Australia have performed tests on the Defense Advanced GPS Receiver (DAGR) in an anechoic chamber to mimic contested and limited GPS conditions.