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"The Achilles heel of GPS is the extremely weak signals that reach the receiver." Each satellite in a sat-nav constellation is putting out less power than a car headlight, illuminating more than a third of the Earth's surface at a distance of more than 20,000 km.” This is what makes it possible, if not easy, to jam GPS signals. ....................... If you want to follow @USCGAuxVin on Twitter, go to http://twitter.com/USCGAuxVin. ............. If you want to follow @USCGAuxVin on Facebook, go to http://www.facebook.com/USCGAuxVin Read the full article.
