GPS is unreliable near Malta (35-53N 014-27E), and HYDROLANT 2442/20 is cancelled.
Mediterranean Sea - Eastern Basin · HYDROLANT 1484/21
What this record establishes
Cancelled notice · 2026-08-14 18:10Z
This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · SFH 021139Z JUN 21.. Issued 2021-06-02 11:41Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-08-17 15:50Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Mediterranean Sea - Eastern Basin. The parsed report position is 35.883, 14.450. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- GPS unreliable in vicinity malta (35-53N 014-27E)cancelled by this notice
Current notices and reporting history in the Mediterranean Sea - Eastern Basin →
- issued
- 2021-06-02 11:41Z
- status
- Cancelled notice
- authority
- SFH 021139Z JUN 21.
- issued by
- SFH
- sea
- Mediterranean Sea - Eastern Basin
- position
- 35.883, 14.450
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:41Z
Original warning text
EASTERN MEDITERRANEAN SEA. MALTA. DNC 09. 1. GPS UNRELIABLE IN VICINITY MALTA (35-53N 014-27E). 2. CANCEL HYDROLANT 2442/20.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- GNSS / GPS
- Satellite positioning — GPS and other systems — and the testing, jamming and interference that make it unreliable in an area.
- Inoperative / unreliable / off air
- An aid or radio service is not working as charted or published.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
Collected reports in this area · aids-to-navigation notices
151 within 180 nm since 1998 · 0 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- NAVTEX stations off air: 1. malta (o) 35-50.29N 014-29.38E2023-08-09
- NAVTEX stations off air a. malta (o) 35-50.29N 014-29.38E2023-08-08
- NAVTEX stations off air: 1. malta (o) 35-50.29N 014-29.38E2022-05-30
- NAVTEX station malta (o) 35-59N 014-32E off air until further notice2022-04-09
- NAVTEX stations off air: 1. malta (o) 35-50.29N 014-29.38E2022-01-19
- Coastal radio station malta 035-51.3N 014-29.3E off air2021-05-10
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
Worldwide in the collected sources
137 aids-to-navigation notices listed in force · see all
Record snapshot 2026-10-01 23:04Z; source collection times vary.
Nav aids
Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.