To be certain as to what the policy is, who can we ask? --BA On 4/19/2013 1:19 PM, Brooke Clarke wrote: > Hi Bob: > > Modern military GPS receivers are jam resistant (proof?). It's my unders= tanding that we have jammers that can be turned > on in active war zones which will totally shut down a civilian L1 type re= ceiver and not effect a military GPS that's > keyed. The jammers are periodically tested in various parts of the world= .. > http://www.prc68.com/I/DAGR.shtml > > There are a number of satellite based navigation/timing systems in additi= on to GPS including Iridium, the Chinese > Compass, Russian GLONASS, etc. > > LORAN-C has been shut down in the U.S. but still is operating in other co= untries. > > The Low & High Frequency Time stations I expect to keep ticking no mater = what since they don't have a military function. > > Have Fun, > > Brooke Clarke > http://www.PRC68.com > > piclist-request@mit.edu wrote: >> [OT] GPS functions during wartime --=20 The only place success comes before work is in the dictionary. VINCE LOMBARDI --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .