Nav aids
Prn 30 unusable
GPS Satellite System · HYDROLANT 1742/10
What this record establishes
Archived notice · 2010-09-25 09:28Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · COGARD NAVCEN GPS 971/10 151737Z SEP 10.. Issued 2010-09-15 19:45Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- GPS Satellite System. No usable coordinates were parsed; a location-based nearby search is unavailable. Check the original wording for limits and qualifications.
- issued
- 2010-09-15 19:45Z
- status
- Archived notice
- authority
- COGARD NAVCEN GPS 971/10 151737Z SEP 10.
- issued by
- COGARD NAVCEN
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
GPS SATELLITE SYSTEM. PRN 30 UNUSABLE.
Reading this warning
- GNSS / GPS
- Satellite positioning — GPS and other systems — and the testing, jamming and interference that make it unreliable in an area.
Nearby notices listed in force · within 120 nm
No parsed position is available for this comparison.
Worldwide in the collected sources
134 aids-to-navigation notices listed in force · see all
Record snapshot 2026-10-04 03:08Z; 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.