The following Notice to Mariners may be of interest to some DYC
Members. It reports possible GPS interference within a 35nm
radius of NAS Patuxent River. Additional info received indicates
the highest probability of interference will occur late at night or
early in the morning.
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
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