GPS - Er dette militære systemet til å stole på? - ATW

RTCA Examines GPS Interference Training Impacts

The FAA isn't providing enough information to pilots about the potential impact of GPS interference testing events, according to a report published by the RTCA, which is a standards development organization focusing on communication, navigation, and surveillance/air traffic management issues. For example, the FAA recently released a GPS interference training flight advisory for June 25 through July 4 in the Fort Polk, Louisiana area. The advisory noted the training may result in an unreliable or unavailable GPS signal. The interference location, date, time, duration, and Notam information is included along with a map depicting the affected area. According to the RTCA, these types of tests and unique locations have been increasing in recent years and operators flying in the NAS would like to better understand the operational impact of such interference. "The effects may include complete loss of GPS navigation, position errors, loss of ADS-B and/or impact to GPS-dependent systems such as TAWS, ELTs, etc.,” the RTCA explained. In a report published in March, the RTCA noted that the Department of Defense (DoD) is required to provide a reliable Global Positioning System for civilian use but also required to train and test U.S. military forces and national security capabilities in conditions that include the denial of GPS. The RTCA tactical operations committee studied the impact of the testing interference and developed recommendations related to this issue.