NOTICE ADVISORY TO NAVSTAR USERS (NANU) #050-93062 SUBJ: PRN11 UNUSABLE 062/0706-062/0720 1. CONDITION: PRN11 (SVN8) WAS UNUSABLE ON DAY 062 (03 MAR 93) BEGINNING 0706 UTC UNTIL DAY 062 AT 0720 UTC. 2. USERS OF GPS ARE CAUTIONED THAT THE SYSTEM IS NOT YET FULLY OPERATIONAL. SIGNAL AVAILABILITY AND ACCURACY ARE SUBJECT TO CHANGE DUE TO AN INCOMPLETE CONSTELLATION AND OPERATIONAL TEST ACTIVITIES. 3. POC: 1LT SKINNER AT COMMERCIAL (719) 550-6378 OR DSN 560-6378.