Re: [Thumbgps-devel] Article -- Macx-1: GPS receiver with standard USB connector and PPS support

[tz <tz2026@gmail.com>]

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They need to disable the dead reckoning feature or at least insure pps
doesn't go out if there is a problem with the fix.  For maps/nav, keeping
the stream intact for a few seconds is good, but not if you need precision.

This does not affect the hotstart memory, only what it does if it loses
enough signal so the fix is lost.
On May 9, 2012 2:43 AM, "Jau-Yang Chen" <cjy@navisys.com.tw> wrote:

> Dear Eric,
>
> Thanks. We are more than happy that our GR-601W USB GPS receiver meets your
> requirement. It's surely useful and helpful to your Bufferbloat project,
> NTP
> project and GPSD project.
>
> If the GPS receiver fixes the position, it could keep position-fix easily
> even entering obstructed environment with its tracking engine. On the
> contrary, it might be harder to fix the position from cold start with its
> acquisition engine under the same obstructed environment. There is built-in
> battery inside GR-601W to support the hot start and warm start. Anyway, we
> fulfill the advantage of u-blox6 chipset to provide the excellent
> performance.
>
> Thanks for your introduction of Mr. Jim Thompson at Netgate as our retailer
> partner in USA. It will be great and much appreciated if we could have a
> channel to sell this winning product in Amazon. To thank you and Dave's
> good
> idea and great support, GR-601W also has a nickname Macx-1.
>
> We plan to put an article as attached on our website for advertisement.
> Could you please review and comment? It will be helpful to promote Macx-1
> USB GPS receiver if you could also put it in the website of your
> SIG/project.
>
> Thanks in advance and best regards,
>
> JY
>
>
> -----Original Message-----
> From: Eric S. Raymond [mailto:esr@thyrsus.com]
> Sent: Tuesday, May 08, 2012 10:50 AM
> To: veronica
> Cc: thumbgps-devel@lists.bufferbloat.net
> Subject: GR-601W success
>
> Gary sent me one of the three GR-601W samples, and I now have had time to
> evaluate its performance over several days.
>
> Please tell your product team that I am *extremely* pleased with this
> device.  Not only is it is delivering good 1PPS with exactly the jitter we
> predicted in the design study, it functions excellently indoors; even
> though
> I have had it on a desk five feet from a window with a poor skyview blocked
> by large trees, it does not seem to have lost satellite lock even once
> since
> it was powered up.
>
> I like everything about this device.  The performance, the simplicity, the
> small form factor - it couldn't be better for my project's needs if I had
> designed it myself. :-)  Your people did a terrific job on this and deserve
> congratulations.
>
> My next step is going to be to ensure that you have a retail partner in the
> U.S. You may already have been approached by Jim Thompson at netgate; I'm
> also trying to find the right person to get Amazon to carry the product.
>
> If there is any other way in which I can assist a successful launch of the
> product, please feel free to ask.  One possibility: if you have product
> documentation in English other that the one data sheet I have seen, I would
> be happy to review and improve it for you.
> --
>                <a href="http://www.catb.org/~esr/">Eric S. Raymond</a>
>
> As war and government prove, insanity is the most contagious of
> diseases.       -- Edward Abbey
>
>
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>
>

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