NOTICE ADVISORY TO NAVSTAR USERS (NANU) 2011026 NANU TYPE: GENERAL 
*** GENERAL MESSAGE TO ALL GPS USERS ***
The government is accomplishing testing that requires the non-operational M-code signal on SVN 62 (PRN 25) be turned off for an indeterminate period.  The vehicle will continue to operate within operational specifications and provide the operational signals at current accuracy and power levels to users.
*** GENERAL MESSAGE TO ALL GPS USERS ***

   POC: 
   CIVILIAN - NAVCEN AT 703-313-5900, HTTP://WWW.NAVCEN.USCG.GOV
   MILITARY - GPS OPERATIONS CENTER at HTTP://GPS.AFSPC.AF.MIL/GPSOC, DSN 560-2541,
     COMM 719-567-2541, gps_support@schriever.af.mil, HTTPS://gps.afspc.af.mil 
   MILITARY ALTERNATE - JOINT SPACE OPERATIONS CENTER, DSN    276-3514, 
     COMM 805-606-3514, JSPOCCOMBATOPS@VANDENBERG.AF.MIL