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TAG: John Lavrakas

Image: GPS World

Expert Advice: Managing GPS, Take Two

December 1, 2014

By John Lavrakas, Advanced Research Corporation What a difference eight years can make! My September 2006 GPS World article […]


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Image: GPS World

Expert Advice: BeiDou, How Things Have Changed

February 1, 2013

Economically, the System Differs Significantly from Its GNSS Cousins John W. Lavrakas In May 2007, I authored an […]


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Image: GPS World

GPS Transmitter Frequencies

January 16, 2007

Why are the two GPS Transmitter frequencies (1575.42 and 1227.6 MHz) coherently selected integer multiples of 10.23 MHz […]


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