The P(Y) code (the encrypted military code) is transmitted on the same frequency as the L1C civilian code and on a different frequency with the L2C civilian code. Regardless, tests by the major GPSr manufacturers indicate that civilian receivers will be significantly impacted by what is effectively front-end overload. I'm not sure there's any reason to expect that military receivers wouldn't suffer similarly if they're using the main L1 frequency.
It's still a mystery why the US government would even consider issuing a license for a system that will adversely impact millions of American users. --G Sent from my iPad On 2011-08-21, at 20:55, Corey Burger <[email protected]> wrote: > Military GPS also use different frequencies. > > Corey > > On Aug 21, 2011 5:54 PM, "Gordon Dewis" <[email protected]> wrote: > > Well, yes, but much of the border is sparsely populated -- most of the > > population lives in large cities, many of which aren't located on the > > border. I imagine the range of the devices they're planning on installing > > is comparable to cell phones rather than hundreds of kilometres. > > > > --G > > > > Sent from my iPad > > > > On 2011-08-21, at 20:32, Richard Weait <[email protected]> wrote: > > > >> On Sun, Aug 21, 2011 at 8:17 PM, Gordon Dewis <[email protected]> wrote: > >>> The geocaching community has been watching this for a while. I don't > >>> understand why this has gotten as far as it has given that the GPS system > >>> is owned by the United States and is used for military and law > >>> enforcement applications domestically. You would think that the > >>> government would just say no to this. This shouldn't have a huge impact > >>> in Canada, except perhaps near the border. > >> > >> The majority of the population in Canada is "near the border" for some > >> value of "near". ;-) Wikipedia says 80% within 150km of the border. > > > > _______________________________________________ > > Talk-ca mailing list > > [email protected] > > http://lists.openstreetmap.org/listinfo/talk-ca
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