[time-nuts] Some More questions

[Matt Ettus]

On 1/19/06, Hal Murray <hmurray at suespammers.org> wrote:
>
> > Then, I am not sure all GPS receivers actually use their internal
> > crystal oscillator in a PLL as the timebase. I have read that some
> > work  by removing or adding pulses in a discrete fashion rather than
> > phase  locking, and this offers significant jitter, making the 1 PPS
> > only  useable to phase lock a reference oscillator with a very long
> > integration period to eliminate the jitter.

To my knowledge, nobody tunes the frequency of the oscillator in their
GPS receiver.

Matt