[Public-List] FYI, careful with your GPS Chartplotters near Solomons

Jim Davis a30240 at earthlink.net
Sat Apr 19 17:18:03 PDT 2008


GPS May be Unreliable in Large Area of Chesapeake Bay, April-Oct: 
The following announcement is from the USCG 5 th District LNM 15. The GPS Coordinates given below are for the Patuxent Naval Air Station, located on the southern bank of the Patuxent River on the Chesapeake Bay in southern Maryland: 

THE GPS NAVIGATION SIGNAL MAY BE UNRELIABLE FROM 01 APR 08 - 31 OCT 08 DUE TO INTERFERENCE TESTING ON GPS FREQUENCIES USED IN SHIPBOARD NAVIGATION AND HANDHELD SYSTEMS. SYSTEMS THAT RELY ON GPS, SUCH AS E-911, AIS AND DSC, MAY BE AFFECTED WITHIN A 35 NM RADIUS OF POSITION 38-15-41N, 076-26-01W 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" 

Another good reason to keep paper handy.


Jim Davis
S/V Isa Lei
CT35

"If everyone is thinking alike, someone isn't thinking."
George S. Patton





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