> > Or put it another way, can you think of a single
> > application where GPS cannot already deliver
> > the same TAI as Galileo will someday deliver?
>
> Golly, Tom, it's on your own web page
> http://www.leapsecond.com/pages/saoff/
>
> At the whim of the commander in chief, GPS can turn on Selective
> Availability and screw the entire world of navigational and
> timekeeping users.
Ah, what web page shows me is that a typical
GPS disciplined oscillator gave me 20 ns rms
while SA was on and 7 ns rms while SA is off.
Either way, it meets the GPS ICD and more
than meets HP's performance spec for that
receiver.
/tvb
> Galileo will derive revenue from subscribers who are paying to
> obtain a guaranteed level of accuracy and reliability.
>
> Of course no agreement can stop some entity from flying a jamming
> rig for both systems over particular theatres of interest.
I'm pretty sure some revenue generating precise
position and time subscription services also exist
from third parties using GPS.
/tvb
Received on Thu Jan 01 2004 - 13:41:48 PST