NOTICE ADVISORY TO NAVSTAR USERS (NANU) #046-92084 SUBJ: PRN25 AVAILABILITY 1. CONDITION: PRN25 WAS USABLE AS OF (24 MAR' 084/1100 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.