[time-nuts] GPS first LO need to be locked?
kb8tq at n1k.org
Thu Mar 30 13:32:15 EDT 2017
There is a limited tracking range for Doppler. You would need to stay inside that.
Sent from my iPhone
> On Mar 30, 2017, at 9:46 AM, paul swed <paulswedb at gmail.com> wrote:
> I am curious if the first local oscillator on a GPS receiver must actually
> be locked or coherent to the reference oscillator in the GPS receiver
> typically running at some 10 MHz approximately. Or as long as the first LO
> is quite stable it doesn't matter because the receiver can track the code.
> This is a question for very classic receivers like Austrons, Odetics etc.
> Discreet. Modern fully integrated receivers are not in question.
> Thank you for your insights.
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