----- Original Message ----- From: <fifth-cg-dlnm@cgls.uscg.mil> To: <Fifth-cg-dlnm@cgls.uscg.mil> Sent: Thursday, March 06, 2008 12:47 PM Subject: GPS/AIS Special Notice 03/06/2008 REPORTS HAVE BEEN VERIFIED THAT SOME SAAB R3-AIS TRANSPONDERS, WHEN COMBINED WITH AN OLDER GPS RECEIVER, HAVE STOPPED WORKING WHILE GPS SATELLITE PRN32 IS IN VIEW. VESSELS AFFECTED ARE REPORTED BEING 'INVISIBLE' TO OTHER AIS EQUIPPED VESSELS IN ADDITION TO SOME AIS EQUIPPED SHORE STATIONS. IT HAS BEEN REPORTED VESSELS EQUIPPED WITH THE SAAB R3-AIS TRANSPONDERS CONTINUE TO RECEIVE AIS INFORMATION FROM OTHER AIS EQUIPED VESSELS. ALL VESSELS ARE ADVISED TO CHECK THE PROPER OPERATION OF THEIR AIS AND GPS EQUIPMENT. GPS PROBLEMS SHOULD BE REPORTED TO THE USCG NAVIGATION CENTER AT WWW.NAVCEN.USCG.GOV/GPS/USERINPUTGPS.HTM OR CONTACT THE USCG NAVIGATION INFORMATION SERVICE AT 703.313.5900. If you have questions regarding this message, you may email the Navigation Center at: mailto:webmaster@navcen.uscg.mil. Regards, The USCG Navigation Center Team http://www.navcen.uscg.gov/ If the USCG Navigation Center web site is not working properly, please be sure to visit our mirror site at: http://www.navcenter.org.