ZCZC BA28 080757 UTC SEP 26 NORWEGIAN NAV. WARNING 331/2026 CHART 81 AREA NORSKEHAVET 1.GPS/GNSS JAMMING EXERCISE 09 TO 18 SEPT 26. 0600-1600 UTC. 15 AND 16 SEPT 1600-2000 UTC. IN AREA BOUNDED BY: 69-50.40N 013-42.00E 69-49.80N 016A15.60E 69-07.20N 016-23.40E 68-39.00N 013-25.80E VESSELS MAY EXPERIENCE DEGRADATION OR LOSS OF GNSS/GPS SERVICES. MARINERS ARE ADVISED TO USE ALTERNATIVE MEANS OF NAVIGATION AND EXERCISE CAUTION. FOR MORE INFO: WWW.JAMMERTEST.NO 2.REFFERS TO NORWEGIAN NOTICE TO MARINER EFS 16-2026 NNNN