Re: [LEAPSECS] trading time

From: Tom Van Baak <tvb_at_LEAPSECOND.COM>
Date: Thu, 1 Jan 2004 13:37:03 -0800

> > 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
> 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


> 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.

Received on Thu Jan 01 2004 - 13:41:48 PST

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