ZCZC EA55 WZ 437/26 SOLE. PLYMOUTH. PORTLAND. ENGLISH CHANNEL. ISLES OF SCILLY TO SWANAGE. 1. INTERMITTENT S-BAND RADAR JAMMING EXERCISES IN PROGRESS DAILY FROM 0800 TO 1700 UTC 14 TO 16 JUL IN AREA BOUND BY 49-50N 007-00W 50-04N 005-44W 50-36N 001-56W 50-00N 001-57W 49-13N 006-15W. 2. MARINERS MAY CONTACT FOST OPS ON +44(0)1752 557550 OR VHF CH 74 CALL SIGN 'FOST OPS' FOR ADVICE OR CESSATION OF JAMMING. 3. CANCEL THIS MSG 161800 UTC JUL 2026. NNNN