[time-nuts] New GNSS chipsets

Joseph Gray jgray at zianet.com
Sun Apr 1 20:12:34 EDT 2018


Tom,

Yes, that was my take on this as well. With easily available sub-meter
position fixes, I believe that even more uses will be found for this
technology.

With the Broadcom chipsets going into phones, Google Maps will no longer
tell you to take the highway ramp, when you are already on the highway :-)

Just remember to turn off your phone and wear your tin foil hat, when you
don't want "the man" knowing where you are :-)

Joe Gray
W5JG


On Sun, Apr 1, 2018 at 9:53 PM, Tom Knox <actast at hotmail.com> wrote:

> Hi All;
>
> I think the real break through is using these different constellations and
> their different frequencies and looking at carrier phase verses timing
> elements. This should allow the removal of propagation delay.
>
> Cheers;
>
> Thomas Knox
> actast at hotmail.com
>
>
> ________________________________
> From: time-nuts <time-nuts-bounces at febo.com> on behalf of Magnus
> Danielson <magnus at rubidium.dyndns.org>
> Sent: Sunday, April 1, 2018 2:40 PM
> To: time-nuts at febo.com
> Cc: magnus at rubidium.se
> Subject: Re: [time-nuts] New GNSS chipsets
>
> Joe,
>
> I'm not sure I had much influence, but I at least try to advocate for it
> to become a good market, so hopefully it will be affordable. It has
> actually been affordable for quite some time, so going multifrequency
> should be the next step and with that the benefits.
>
> Cheers,
> Magnus
>
> On 04/01/2018 07:04 PM, Joseph Gray wrote:
> > Magnus,
> >
> > When I can buy one of these new, multi-frequency receivers, I'll remember
> > to thank you :-) I wonder if any of the three will be available this
> year.
> > The Broadcom chipset in phones will be nice, but I'd also like a
> standalone
> > module from anyone. More fun stuff to play with.
> >
> > Joe Gray
> > W5JG
> >
> >
> > On Sun, Apr 1, 2018 at 3:15 AM, Magnus Danielson <
> magnus at rubidium.dyndns.org
> >> wrote:
> >
> >> Hi Joe,
> >>
> >> On 03/31/2018 01:16 PM, Joseph Gray wrote:
> >>> I've been reading announcements by Broadcom, uBlox and ST Micro for new
> >>> chipsets that will use L1, L2, L5 to provide significantly more precise
> >>> positioning for every day applications like cell phone, autonomous
> >>> vehicles, UAV, etc. Broadcom is claiming 30 cm, uBlox just says
> >> "centimeter
> >>> level". The next few years ought to be very interesting, as these
> >> chipsets
> >>> become available in consumer products.
> >>
> >> I have advocated for receivers able to handle multiple frequencies and
> >> multiple GNSS for some time, sneaking it into documents, so there should
> >> be some preparations for this now.
> >>
> >> The benefit is naturally redundancy, but also higher precision.
> >>
> >> Natural I would enjoy cheap multi-frequency receivers myself, but I
> >> would never admit that this would be a reason for advocating it. ;-)
> >>
> >> Cheers,
> >> Magnus
> >> _______________________________________________
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> >>
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