With many of us mid-Atlantic sailors going back into the drink soon (like me this week!), thought I'd post this reminder about some potential GPS issues in the Potomac River/Chesapeake Bay vicinity, fyi.
UPPER POTOMAC RIVER – GPS NAVIGATIONAL SIGNAL TESTING
THE GPS NAVIGATION SIGNAL MAY BE UNRELIABLE FROM (10 July 2009 - 10 July 2010 0000Z - 1200Z) IN THE UPPER POTOMAC RIVER DUE TO
TESTING ON GPS FREQUENCIES USED IN SHIPBOARD NAVIGATION AND HANDHELD SYSTEMS. GPS SYSTEMS THAT RELY ON GPS, SUCH AS E-
911, AIS AND DSC, MAY BE AFFECTED WITHIN A 10 NM RADIUS OF POSITION (38 49.74N 077 01.55W). DURING THIS PERIOD GPS USERS
ARE ENCOURAGED TO REPORT ANY GPS SERVICE OUTAGES THAT THEY MAY EXPERIENCE DURING THIS TESTING VIA THE NAVIGATION
INFORMATION SERVICE (NIS) BY CALLING (703)313-5900 OR BY USING THE NAVCEN'S WEB SITE'S GPS REPORT A PROBLEM WORKSHEET AT
WWW.NAVCEN.USCG.GOV.
CHESAPEAKE BAY – PATUXENT RIVER – GPS NAVIGATIONAL SIGNAL TESTING
THE GPS NAVIGATION SIGNALS MAY BE UNRELIABLE FROM 22 DEC 09 - 30 APR 10, 1300Z - 2300Z DUE TO TESTING ON GPS FREQUENCIES
USED IN SHIPBOARD NAVIGATION AND HANDHELD SYSTEMS. GPS SYSTEMS THAT RELY ON GPS, SUCH AS E-911, AIS AND DSC, MAY BE
AFFECTED WITHIN A 15 NM RADIUS OF POSITION 38-15.7N, 076-26.03W. DURING THIS PERIOD GPS USERS ARE ENCOURAGED TO REPORT
ANY GPS SERVICE OUTAGES THAT THEY MAY EXPERIENCE DURING THIS TESTING VIA THE NAVIGATION INFORMATION SERVICE (NIS) BY
CALLING (703)313-5900 OR BY USING THE NAVCEN'S WEB SITE'S GPS REPORT A PROBLEM WORKSHEET AT WWW.NAVCEN.USCG.GOV
LNM:
LNM:
31/09
51/09
TESTING ON GPS FREQUENCIES USED IN SHIPBOARD NAVIGATION AND HANDHELD SYSTEMS. GPS SYSTEMS THAT RELY ON GPS, SUCH AS E-
911, AIS AND DSC, MAY BE AFFECTED WITHIN A 10 NM RADIUS OF POSITION (38 49.74N 077 01.55W). DURING THIS PERIOD GPS USERS
ARE ENCOURAGED TO REPORT ANY GPS SERVICE OUTAGES THAT THEY MAY EXPERIENCE DURING THIS TESTING VIA THE NAVIGATION
INFORMATION SERVICE (NIS) BY CALLING (703)313-5900 OR BY USING THE NAVCEN'S WEB SITE'S GPS REPORT A PROBLEM WORKSHEET AT
WWW.NAVCEN.USCG.GOV.
CHESAPEAKE BAY – PATUXENT RIVER – GPS NAVIGATIONAL SIGNAL TESTING
THE GPS NAVIGATION SIGNALS MAY BE UNRELIABLE FROM 22 DEC 09 - 30 APR 10, 1300Z - 2300Z DUE TO TESTING ON GPS FREQUENCIES
USED IN SHIPBOARD NAVIGATION AND HANDHELD SYSTEMS. GPS SYSTEMS THAT RELY ON GPS, SUCH AS E-911, AIS AND DSC, MAY BE
AFFECTED WITHIN A 15 NM RADIUS OF POSITION 38-15.7N, 076-26.03W. DURING THIS PERIOD GPS USERS ARE ENCOURAGED TO REPORT
ANY GPS SERVICE OUTAGES THAT THEY MAY EXPERIENCE DURING THIS TESTING VIA THE NAVIGATION INFORMATION SERVICE (NIS) BY
CALLING (703)313-5900 OR BY USING THE NAVCEN'S WEB SITE'S GPS REPORT A PROBLEM WORKSHEET AT WWW.NAVCEN.USCG.GOV
LNM:
LNM:
31/09
51/09
