RDN-509 Space-time security isolation equipment is mainly used to protect the clocks of other devices within the power coverage of anti-drone equipment from being affected and don’t change the original time synchronization system. The system has the feature of in-situ reinforcement, and there is no need to replace the original GPS satellite timing system, it can be installed in-situ to achieve timing security reinforcement. It can identify and alarm, detect and identify high-power suppression interference events and output alarm information, detect and identify spoofing signals transmitted by a single antenna, When GPS L1, BD B1, GLONASS G1 interference and spoofing signals are identified, it can cut off the real satellite signal in time. When the real satellite signal is cut off, the simulated GPS L1 and BD B1 timing signals are regenerated and output.