NOTICE ADVISORY TO NAVSTAR USERS (NANU) #082-93090
SUBJ: ANTI-SPOOFING ACTIVITY ON PRN19
1. CONDITION: ANTI-SPOOFING (AS) WAS ACTIVATED ON PRN19 (SVN19) ON
DAY 090 (31 MAR 93) FROM 1900 UTC - 1930 UTC AND 2000 UTC - 2030 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.