[time-nuts] Re: Can Ublox GPS NEO provide 10MHz signal?

[Peter Bell]

If you are mostly interested in 10MHz you could take a look at the Trimble
ICM SMT 360 - it's a quad system GNSS module with a dedicated 10MHz
output.  It's not exactly a high performance oscillator (-100dBc/Hz @
100Hz, IIRC), but it's certainly way cleaner than a Ublox set to 10Mhz.

Regards,

Pete


On Wed, Feb 22, 2023 at 10:14 AM F1CHF via time-nuts <
time-nuts at lists.febo.com> wrote:

> on page 10 and ++ of the PDF it is clear that 10 mhz is not OK (jitter)
> main oscillator is a 48 Mhz
> 73's de F1CHF
>
>
> Le 20/02/2023 9:34 pm, Attila Kinali via time-nuts a écrit :
> > On Thu, 19 Jan 2023 09:57:04 +0100
> > F1CHF via time-nuts <time-nuts at lists.febo.com> wrote:
> >
> >>
> https://content.u-blox.com/sites/default/files/products/documents/Timing_AppNote_%28GPS.G6-X-11007%29.pdf
> >
> > A word of warning here. This document was prepared using a LEA-6T in
> > 2011,
> > triggered by complaint of yours truly about the lack of application
> > data of
> > the timing modules a year or two earlier. It probably still holds true
> > for
> > the LEA-8 and NEO-8 modules. But the modern 9th and 10th generation
> > modules
> > must have seen significant overhaul to accomodate for the dual
> > frequency
> > receivers. Not to mention that close to 15 years have now passed since
> > the
> > introduction of the LEA-6 series and it is likely that u-blox
> > completely
> > redesigned their processor for the new silicon processes including the
> > internal control software. I.e. I would not trust this data to apply to
> > modern receivers without verifying it first.
> >
> >                               Attila Kinali
> > --
> > In science if you know what you are doing you should not be doing it.
> > In engineering if you do not know what you are doing you should not be
> > doing it.
> >         -- Richard W. Hamming, The Art of Doing Science and Engineering
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