ADS-B surveillance and some TCAS operations in the airspace over Virginia, North and South Carolina, Georgia and Florida might become unreliable as of September 2 at 1 a.m.EDT, according to a Notam the FAA issued on September 1. The outages are due to events the agency labeled as late notice from the Department of Defense of military exercises.NBAA voiced its concern to the FAA that these sort of significant impact tests need much more notice to operators in the National Airspace System.
The outages are scheduled to last until midnight October 1. In addition to the areas of concern noted in domestic airspace, the FAA said the outages might well extend up to 200-nm offshore.
The agency said one outage symptom could be the tracks of nearby aircraft first appearing close to the primary aircraft that immediately switch to a traffic alert/resolution alert status onTCAS. Pilots should maintain a heightened watch on the airspace around them and report any incidents of nearby aircraft they believe should have generated alerts, but did not. The relevant Notam numbers are 5/2817, 5/2818, 5/2819, 5/2820 and 5/2834.
http://www.ainonline.com/aviation-news/aerospace/2015-09-01/tcas-ads-b-unreliable-east-coast-during-september
I also found some very interesting information on this forum, which is open for public reading:
The DEFCON Warning System Message Board
http://www.defconwarningsystem.com/phpBB3/viewtopic.php?t=3384
Follow the above information, with this information that was released in the main stream media yesterday:
September 3, 2015 6:02 am
Chinese navy sails off Alaska coast as Obama visits Arctic
Five Chinese navy ships have sailed off the coast of Alaska in the Bering Sea, as Barack Obama made the first visit by a sitting US president to the Arctic.
The US confirmed that the vessels were sailing through international waters near Alaska, in the latest example of the growing reach of the Chinese navy
We are aware of the five Peoples Liberation Army Navy ships in the Bering Sea, said Commander Bill Urban, a Pentagon spokesman. This is the first time we have observed PLAN ships in the Bering Sea.
Taking place as Beijing staged a high-profile military parade on Thursday, and ahead of a visit to Washington by Chinas President Xi Jinping later this month, the unprecedented demonstration of naval reach is a further reminder of Chinas rising global assertiveness.
http://www.ft.com/cms/s/0/c5bf6ce6-51ee-11e5-8642-453585f2cfcd.html#axzz3kctUs4N2