GNSS Interference Report
Issued: 9 months, 2 weeks ago
Date Reference Region Category Aggressors Source
18 Jan 2024 - 04:31 CW GNSS 168 Europe GNSS Interference NAVCEN
USER: When vessel was approaching the port of Haifa, Israel disruptions of both GPS/GNSS signal occurred. At first it was intermittent and as vessel progressed sailing towards pilot station both GPS/GNSS signals were completely lost. At times, during anchorage stay, the vessel experienced spoofing as GPS position observed inland of >50nm from vessel's actual position. When the vessel heave up anchor and commenced proceeding to pilot station it was observed that the GPS/GNSS receiver was working properly for few minutes and again signal disruption occurred to all GPS/GNSS receivers until the vessel berth and commence cargo operation. At departure the vessel had no signal coming from both GPS/GNSS until about >20 nm from Haifa, Israel. NAVCEN: The GPS Operations Center reviewed the GPS Constellation and Control Segment, there are no known anomalies that might affect GPS signal integrity at the time and vicinity of the reported problem. Space weather was reviewed and found unlikely to have impacted GPS performance. There were no authorized GPS tests in the area. No correlating reports from inter-agency partners. No additional information.
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