NOTICE ADVISORY TO NAVSTAR USERS (NANU) #049-90075 SUBJ: PRN11/SVN8 USABLE 1. CONDITION: PRN11/SVN8 WAS SET USABLE ON 16 MAR 90 CJULIAN DAY 075L AT 0225 UTC. 2. RECOMMENDED ACTIONS: DUE TO THE REPHASING OF PRN11, GPS RECEIVERS SHOULD BE REINITIALIZED (UPDATE ALMANACS). 3. POINT OF CONTACT: MAJ WILLIAM FAUVER AT COMMERCIAL: (719)550-6379 OR AUTOVON 560-6379.