[time-nuts] Ublox F9P multi-band GPS receiver

Dustin Marquess dmarquess at gmail.com
Thu Jan 24 06:30:20 UTC 2019


This looks ideal to me:

https://www.u-blox.com/sites/default/files/RCB-F9T_ProductSummary_%28UBX-18069985%29.pdf

-Dustin

On Wed, Jan 23, 2019 at 8:01 PM Angus via time-nuts
<time-nuts at lists.febo.com> wrote:
>
> Hi,
>
> It doesn't look like the F9P does anything special for timing - the
> timing specs given in the F9T spec sheet are 5 ns (1-sigma, clear sky,
> absolute mode) and +/- 4ns jitter, but for the F9P are 30ns RMS and
> 60ns for 99%.
>
> I think I want an F9T :)
>
> Angus.
>
> On Mon, 21 Jan 2019 09:00:33 -0500, you wrote:
>
> >Hi
> >
> >Ok, so the “product summary” page on DigiKey very clearly shows the
> >frequency coverage information. If that data sheet was on SparkFun ….
> >I must have gone right past it.
> >
> >The equivalent F9T sheet starts out right at the top talking about correcting
> >ionosphere delay to deliver better timing. One would *assume* the F9P
> >does the same thing. It never seems to show up in quite the same big bold
> >print….
> >
> >Bob
> >
> >> On Jan 21, 2019, at 8:44 AM, Bob kb8tq <kb8tq at n1k.org> wrote:
> >>
> >> Hi
> >>
> >>
> >>> On Jan 21, 2019, at 1:41 AM, Mark Sims <holrum at hotmail.com <mailto:holrum at hotmail.com>> wrote:
> >>>
> >>>> It is clearly multi-band for GPS. It is unclear from a quick read if it is multi-band for the other systems.
> >>>
> >>> Here's what they say it supports:
> >>>
> >>> 184-channel u-blox F9 engine
> >>> GPS L1C/A L2C,
> >>> GLO L1OF L2OF,
> >>> GAL E1B/C E5b,
> >>> BDS B1I B2I,
> >>> QZSS L1C/A L2C
> >>
> >> If that’s in the docs on the module, I missed it. My concern is the frequency range of the front end
> >> SAW’s (that are external to the chip set).
> >>
> >>>
> >>> Here's the link to the Sparkfun device.  I think it uses a u.FL antenna connector.
> >>> https://www.sparkfun.com/products/15136 <https://www.sparkfun.com/products/15136>
> >>
> >> Yup and they aren’t crazy expensive compared to the module. The usual auction sites also have
> >> the same sort of thing for a bit less money.
> >>
> >> Bob
> >>
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> >
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