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To: EternalVigilance
If my memory serves, commercial and military GPS units have a high degree of difference in their accuracy.

Not anymore. Military units simply had access to the encrypted signal, which was more precise. The unencrypted signal had random variability introduced into it -- the euphemism was "Selective Availability".

However, Clinton signed an executive order to turn off Selective Availability, so civilian units now have the same accuracy. I believe the DoD has the means to reinstitute Selective Availability very quickly if necessary.

232 posted on 04/29/2009 1:58:43 PM PDT by justlurking (The only remedy for a bad guy with a gun is a good guy with a gun.)
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To: justlurking

Thanks for the education!


234 posted on 04/29/2009 2:02:05 PM PDT by EternalVigilance (TATBO)
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