NOTICE ADVISORY TO NAVSTAR USERS (NANU) #097-93106 SUBJ: PRN3 UNUSABLE 106/2200-106/2230 1. CONDITION: PRN3 (SVN11) WAS UNUSABLE ON DAY 106 (16 APR 93) BEGINNING 2200 UTC UNTIL DAY 106 AT 2230 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: CAPT HUTSELL AT COMMERCIAL (719) 550-6378 OR DSN 560-6378.