[time-nuts] Einstein Special on PBS

[Hal Murray]

holrum at hotmail.com said:
> The GPS spec implies the satellites have a fixed frequency offset to
> compensate for relativistic effects.  But do they actually dynamically and/
> or individually adjust the frequency to adjust for orbit variations and
> eccentricities?   		 	   		   

I think the orbits are circular so the frequency won't depend on the orbital 
position.

The next question is does the math in the receiver have to correct for 
changes due to elevation?  Does it become relevant if you are trying for 
survey grade results?

-- 
These are my opinions.  I hate spam.