[Diy_efi] Fast updating (20Hz) GPS receivers for track

[steve at donegan.org]

That item looks good - mate it with a USB/Serial interface and it makes the acquisition side of a system. Or simply a level shifter serial interface as it appears a 3.3V interface is on that module.
____________
Steven Donegan
SSCC/NORC Car #86
www.sscc.us



--- On Mon, 7/18/11, Avery Nisbet <anisbet at gmail.com> wrote:

> From: Avery Nisbet <anisbet at gmail.com>
> Subject: Re: [Diy_efi] Fast updating (20Hz) GPS receivers for track
> To: "Jay Rabe" <jayrabe at gmail.com>
> Cc: diy_efi at diy-efi.org
> Date: Monday, July 18, 2011, 6:07 PM
> I highly doubt its doing any
> interpolation.? It would be more work
> than actually doing the real thing.
> If anything they may not truly giving 10 NMEA sentences a
> second.
> Maybe 9.3 or 9.75 a second.
> 
> 
> http://www.sparkfun.com/products/9133
> 
> Sparkfun also did a good right up on what to look for and
> what chips
> they carry and how it all works.
> 
> Look into what the chip in the module can do.? Find
> the data sheet
> most are reconfigureable with some resistors or by sending
> them some
> commands.
> 
> 
> -Avery
> 
> 2011/7/16 Jay Rabe <jayrabe at gmail.com>:
> > Im not sure if this is exactly what you are looking
> for but it has some info
> > on 5hz vs 10hz gps receivers.
> > http://trackmaster.trackaroo.com/forums/-/message_boards/message/43468
> > theres one post that says a bunch of the 10hz
> receivers are really 5hz and
> > interpolate to make them 10hz, no idea the validity of
> that claim but might
> > want to check it out quick before you go nuts hunting
> a 20hz down. (maybe
> > more interpolation bs or something to look out for.)
> > ? The GPS receiver is bluetooth that they're talking
> about,
> > http://www.qstarz.com/GPS_products.htm
> you might find some more info there.
> >
> > On Sat, Jul 16, 2011 at 1:20 PM, Brian Koontz <brian at pongonova.net>
> wrote:
> >>
> >> On Sat, Jul 16, 2011 at 11:08:03AM -0700, steve at donegan.org
> wrote:
> >> > Been googling for GPS modules this morning
> and the fastest I've
> >> > found so far is a 5Hz refresh. If anyone else
> finds something better
> >> > (module, not system) let me know.
> >>
> >> 10Hz, $40:
> >>
> >>
> >> http://www.thaieasyelec.net/index.php/GPS/65-Channel-SUP500F-10Hz-GPS-Receiver-with-Smart-Antenna/p_145.html
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