Gps

[mad_jock]

New Scientist

http://www.newscientistspace.com/article.ns?id=dn8051

Article in the latest additions to the fleet.

Gives the upgrade over the next few years.

Does anyone know about this new exra freq. I take it won't be available until quite far into the replacement program.

And all you needed to know about gps

http://www.colorado.edu/geography/gc...gps/gps_f.html