Nav aids

GPS satellite system

Norwegian Sea · HYDROLANT 1272/12

What this record establishes

Archived notice · 2012-06-15 15:00Z

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) · NAVAREA I 146/12 130940Z JUN 12.. Issued 2012-06-13 11:46Z. 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: Norwegian Sea. The parsed report position is 64.750, 8.417 with a 270.0 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Norwegian Sea →

issued: 2012-06-13 11:46Z
status: Archived notice
self-cancels: 2012-06-15 15:00Z
authority: NAVAREA I 146/12 130940Z JUN 12.
NAVAREA: NAVAREA I · named as the source of this relay
sea: Norwegian Sea
position: 64.750, 8.417 · r 270.0 nm
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

NORWEGIAN SEA.
GPS SATELLITE SYSTEM.
1. NATO EXERCISE UNIFIED VISION 2012 IN PROGRESS
   INCLUDING GPS JAMMING EXERCISES.
   GPS UNRELIABLE 0600Z TO 1400Z DAILY 14 AND 15 JUN
   WITHIN 270 MILES OF 64-45N 008-25E.
2. CANCEL THIS MSG 151500Z JUN.

Reading this warning

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.
Within a radius of: A circular area — every position within a stated distance of a point.
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.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.

All warning terms →

Collected reports in this area · aids-to-navigation notices

4 within 180 nm since 2012 · 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.

Platform heidrun 65-19.53N 007-18.95E unlit until 16 sep2022-08-20
GPS satellite system2012-06-24
GPS satellite system2012-06-17

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

Survey operations in progress until further notice by M/V amazon conqueror towing 12 10000 meter long cables…Surveys · 72.3 nm

Worldwide in the collected sources

134 aids-to-navigation notices listed in force · see all

Record snapshot 2026-10-03 18:13Z; 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.