On 09/03/2011 05:11 PM, Darren New wrote:

> I think they turned off the encryption of the low bits back in Clinton's
> timeframe, when other countries started threatening to launch their own
> satellites. I think civilian GPS is quite accurate now.

My satnav device cannot accurately determine which motorway I'm on. 
Given that a six-lane motorway isn't exactly small, this implies a very 
large inaccuracy in the GPS location.

(Of course, I suppose they may have turned off the encryption, but that 
doesn't mean that a specific device knows about this fact...)

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