North Carolina is a real hub of military activity. Navy and Air Force in Norfolk, USCG in Elizabeth City, Cherry Point, Camp Lejune, Ft Bragg, an amphib base in New River, the air force in Goldsboro, and there's probably more. A couple of times per year we get announcement on NOAA and in the Notice to Mariners about diminished accuracy of GPS due to various exercises. You also need to pay attention to the announcements of live fire exercises down near New River. I don't understand how they manipulate the accuracy or turn it off (which also seems to happen from time to time with out an announcement) in a selective area, but they do.
From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Steve Thomas Sent: Monday, January 28, 2013 11:02 AM To: cnc-list@cnc-list.com Subject: Re: Stus-List Sextant One thing about GPS is that the system is under the direct control of the U.S. military. They might decide to mess with it if there was an operational reason for doing so. More remote possibilities would be damage to the system from solar activity or electromagnetic pulse from an atomic bomb above the atmosphere. North Korea is probably capable of the latter sort of vandalism if it found itself under attack. Don't know how the Europeans are coming along with their system, but it won't be infallable either. No I don't think satellite system failure is very likely, but if I were setting off for a trip around the world, I would definitely be packing a sextant. Steve Thomas C&C27 MKIII Port Stanley, ON
_______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
