[time-nuts] Compensating phase differnces in dual frequency GPS receviers?

Attila Kinali attila at kinali.ch
Fri Dec 2 04:52:03 EST 2011


On Fri, 2 Dec 2011 01:33:45 -0800
Peter Monta <pmonta at gmail.com> wrote:

> > What if the crystal driving the DSP changes frequency with temperature?
> 
> I believe it would have no effect.  The local clock should drop out of
> any navigation or timing solution, so long as the changes are slow
> enough to avoid loss of lock in carrier tracking.

There are more components to 1PPS generation than just input filters
and crystals. Yes, some components have hardly any effect, others do.
What exactly has an effect depends highly on the exact setup of the
system and how the software works.

			Attila Kinali

-- 
The trouble with you, Shev, is you don't say anything until you've saved
up a whole truckload of damned heavy brick arguments and then you dump
them all out and never look at the bleeding body mangled beneath the heap
		-- Tirin, The Dispossessed, U. Le Guin




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