Jamming of GNSS Receiver on B737 MAX Aircraft and Its Impact on ADS-B Technology

The ADS-B system is one of the key pillars of the future surveillance infrastructure, where the provided position information is predominantly dependent on the availability and quality of GNSS position information. The article presents the findings obtained during a real-time measurement in which the GNSS receiver within the multi-mode receiver (MMR) on the B737 MAX was interfered. In addition to identifying the power level sufficient to disable the GNSS receiver on this aircraft, the article further describes the behavior of the ADS-B system under jamming conditions. The experiment was performed on the ground, i.e., both the aircraft and the jammer were stationary during all phases of measurement.