GNSS Interference Report
Issued: 3 months ago
Date Reference Region Category Aggressors Source
8 Feb 2024 - 18:28 CW GNSS 174 Southeast Asia GNSS Interference NAVCEN
USER: 1. Vessel’s Name: Lucina Providence 2. Type of Incident: GPS Signal interference 3. Date and Time of Incident: 23 Feb 2024/ 1028LT ( 23 Feb 2024/ 0228 UTC) 4. Ship’s Position: 07°32.5’N; 108°13.1’E 5. Status: Underway, full speed at sea. 6. Brief Description of the Incident: Interference with GPS Signal of all Vessel’s in the vicinity for approx. 38 Min 7. Others: a) GPS signal interference to both DGPS receiver and independent AIS. b) All Vessel’s in the Vicinity ( 15NM radius approx.) had interference. c) 1106LT, signal regained. HDOP within limits. GPS signal satisfactory. Matter resolved. d) During this incident vessel is in south China sea and there were three unidentified vessels can’t be seen on AIS. 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.
Other alerts for

Southeast Asia


Robbery on a Barge being towed by a Tug, Singapore Strait

It has been reported that a barge whilst under tow by a tug in the Westbound Lane of the Traffic Separation Scheme in the Singapore …

Attempted Robbery on a tanker, Indonesia

It has been reported that there has been a robbery on tanker while anchored at Dumai Inner Anchorage, Indonesia. Three perpetrators armed with steel bars …

Attempted Robbery on Bulk Carrier, Singapore Strait

It has been reported that an Iran Flagged Bulk Carrier observed one perpetrator having boarded the vessel whilst underway in the Phillip Channel, Singapore Strait. …

Robbery on a bulk carrier, Singapore Strait

It has been reported that four robbers managed to board a Hong Kong flagged bulk carrier whilst underway in the Eastbound lane of the Traffic …

Attempted Robbery on Tanker, Singapore Strait

It has been reported that a Malta Flagged Tanker underway in the Phillip Channel, Singapore Strait was boarded by two perpetrators armed with knives. No …

Robbery on a bulk carrier, Singapore Strait

It has been reported that there has been a robbery on a Philippine-flagged bulk carrier while underway along the Eastbound Lane of the Traffic Separation …

Robbery on a supply vessel, Singapore Strait

It has been reported that there has been a robbery on a Vietnam-flagged supply vessel while underway in the Eastbound Lane of the traffic Separation …

Attempted robbery on a bulk carrier, Singapore Strait

It has been reported that an attempted robbery occurred in a Liberia-flagged bulk carrier whilst underway in the Phillip Channel, Singapore Strait. Three robbers armed …

Attempted robbery on a bulk carrier, Malacca Strait

It has been reported that one robber armed with a shovel - like weapon managed to board a Marshall Islands flagged bulk carrier whilst underway …

Attempted robbery on a bulk carrier, Singapore Strait

It has been reported that four robbers armed with knives boarded a Belgium flagged bulk carrier whilst underway in the Philip Channel, Singapore Strait. The …

Robbery on a container ship, Philippines

It has been reported that there has been a robbery on a Liberia-flagged container ship while anchored at Manila anchorage, Philippines. The Master confirmed that …

Attempted robbery on a bulk carrier, Singapore Strait

It has been reported that there has been an attempted robbery onboard a Panama-flagged bulk carrier while underway in the Eastbound Lane of the Traffic …

Robbery on a bulk carrier, Singapore Strait

It has been reported that there has been a robbery on a Panama-flagged bulk carrier while anchored and conducting a bunkering operation off the coast …

Robbery on a bulk carrier, Singapore Strait

It has been reported that there has been a robbery on a bulk carrier while underway North of Pulau Cula, Singapore Strait. Four perpetrators armed …

Robbery on a barge towed by a tug, Singapore Straits

It has been reported that the crew on a tug observed three robbers boarding the barge she was towing whilst transiting south of Tanjung Piai, …

Robbery on a bulk carrier, Singapore Strait

It has been reported that a robbery occurred on a bulk carrier between 0300 LT and 0700 LT in the Singapore Strait. It was noticed …

Robbery on a tanker, India

It has been reported that a berthed tanker at Chittagong, Bangladesh, was boarded by up to eight robbers armed with knives. The crew were alerted …

Robbery on a bulk carrier, Singapore Strait

It has been reported that there has been a robbery onboard a Singapore-flagged bulk carrier while underway in the Phillip Channel, Singapore Strait. Duty crew …

Robbery on a bulk carrier, Vietnam

It has been reported that a robbery occurred on a bulk carrier whilst anchored at Phu My Anchorage, Vietnam. Robbers were able to board the …