This is a surprise: "in reality more than 90 percent of the users of GPS worldwide use it primarily for a timing reference."
That makes the LORAN shutdown look even more idiotiuc! -John ============== Copied from <http://www.gpsworld.com/defense/gps-insights-april-2007-8428>: "I recently...participate[d] in a...study that determined...that if GPS were to fail today, there is an excellent chance that credit cards would not function, gas pumps would not operate, cell phones would not work, internet, bank and stock transactions would slow to a crawl, and on and on. "To fully understand this, remember that the Global Positioning System is also known as a PNT or Positioning, Navigation and Timing system. The position and navigation part is what we generally think of, but in reality more than 90 percent of the users of GPS worldwide use it primarily for a timing reference. "This timing discussion provides a nice segue to the topic of LORAN and eLORAN, which last month I listed as a key augmentation for the perfect handheld GPS transceiver. Several of you asked why and there are a myriad of reasons including: LORAN is a mature and proven system with much greater signal strength (you can use it indoors).... "Why do we need a backup? Here is a classic case in point..... [I]t took NAVCEN and supporting agencies 72 hours to pinpoint the jamming source...." ======= _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
