The Coast Guard said a series of tests to the Global Positioning System will be conducted at various times between Sunday and Sept. 9 that could cause GPS service to be unreliable or unavailable.
The testing is scheduled as follows:
• Aug. 19 to Sept. 9 from 3 to 8 p.m. and midnight to 4 a.m. within an approximate radius of 60 nautical miles from position 22-49-12N, 160-09-27W.
• Aug. 19 to Sept. 9 from 8 p.m. to 4 a.m. within an approximate radius of 298 nautical miles from position 22-05-39N, 159-45-11W.
• Aug. 20 to Sept. 9 from midnight to 4 a.m. within an approximate radius of 425 nautical miles from position 22-19-23N, 159-58-02W.
During the test periods GPS users are encouraged to report service outages to the Coast Guard Navigation Center by calling (703) 313-5900 or completing a GPS problem reporting form on the center’s website at www.navcen.uscg.gov.