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'[OT]: GPS Receivers (Global Positioning System)'
2001\01\24@210829 by Freddie Leaf

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I'm looking for an OEM GPS that outputs NMEA data
receiver (not a complete GPS unit with LCD).  I
remember seeing a link on the PIC list or Stamp list
some time ago but can't find it.  If anhyone knows of
such a product please post the web site.  Thanks.


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2001\01\25@005020 by Rex's mail

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I use the Garmin 35 here for time clocking (1PPS output) and have found it
to be very reliable.  There is also a 25 and I think a 20 in the series.

It is shaped like a mouse (computer type) with the control cable coming from
it.  Garmin also offer a control program where you can preprogram some of
the parameters (location etc) to allow the unit to lock faster.  You can
also program it to control which NEMA sentences you get - handy feature if
you are writing code for it as it saves having to write routines to parse
the unwanted sentences.

If you go for the Garmin and can't get the software e-mail me and I will
sent it.

Rex


{Original Message removed}

2001\01\25@092905 by Steven J. Devine

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> I'm looking for an OEM GPS that outputs NMEA data
> receiver (not a complete GPS unit with LCD).  I
> remember seeing a link on the PIC list or Stamp list
> some time ago but can't find it.  If anhyone knows of
> such a product please post the web site.  Thanks.

Here are a couple of messages forwarded to me when I was going GPS research for an avionics project...  (still in thw queue... someday...)

__________________________________________________

I just got off the phone with Peter at Sigem (http://www.sigem.ca).  Their
GPS products are VERY affordable.  The entire receiver unit (12 sattelites!)
costs about $135 in small quantities.  The wiring diagram is a builder's
dream!  Coax connector for antenna is soldered on the board.  Then there's a
10 pin header for power and data, and the data is already formatted in NMEA
0183 format.

Peter also mentioned that there is a firmware update in the works for WAAS
interface that requires no additional hardware.  As I understand it, WAAS is
ground-transmitted correction information to correct for selective
availability.  I like the "no additional hardware" part!

I'm really liking this company.  Peter was very friendly and helpful even
though I told him I was a hobbyist buying in onesies.  They have a eval kit
for $299 that includes additional hardware for interfacing with a host PC.

-Matt

Add to the sensors page:  http://www.sigem.com has cost-effective ($135) GPS
receivers.

-Matt

__________________________________________________

I know this is a bit early for the glass cockpit prototypes, but some of you
may want to start at this end.... Here are a couple of embeddable GPS
receiver URLs. I'm particularly fascinated by the Rojone unit as it can
provide acceleration data which might allow a virtual turn and bank
indicator, G-meter etc as well as nav data...?
http://www.rojone.com.au/gpsgenius.htm
http://www.trimble.com/oem/om_embed.htm
The trimble unit is cheaper but not as capable....

__________________________________________________

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2001\01\25@102106 by Russell McMahon

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> I'm looking for an OEM GPS that outputs NMEA data
> receiver (not a complete GPS unit with LCD).  I
> remember seeing a link on the PIC list or Stamp list
> some time ago but can't find it.  If anhyone knows of
> such a product please post the web site.  Thanks.


Talon technologies make several.
They are NZ based but sell mainly in the USA and will have US outlets.
(They quote ALL their prices only in US dollars).
They do the units for the Rand Macnally in car road map system.

The basic units are about $US70 or 80 AFAIR and provide a serial link to a
PC port with DB9 connector and 5 to 12 volt power feed.
Antenna is included in the unit in the price.
You don't really NEED a development system.
Once you read the basic NMEA material (lots on web) you find the units work
about exactly as you would expect.
Basically plug it in and go.
12 parallel channels.


RM

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2001\01\25@154002 by Don Hyde

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Try:
http://www.axiomnav.com

{Quote hidden}

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2001\01\25@161337 by Lester Wilson

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We use the SiGEM 56xx receivers

see http://www.SiGEM.com

its a flash site, its not great to navigate, look at the downloads section
and find the tab on the bottom left hand corner of the page, check site map
and then look for Downloads, then Hardware and near the bottom ther are the
data sheets for the GPS receiver modules.


Regards

Lester Wilson
---------------------------------------------
Crownhill Associates Limited
32, Broad Street
Ely, Cambridge
CB7 4AH
England - UK

Tel: +44 (0) 1353 66 67 09
Fax +44 (0) 1353 66 67 10
---------------------------------------------
email: lesterspamspam_OUTcambs.net
---------------------------------------------
http://www.crownhill.co.uk
http://www.picbasic.co.uk
http://www.cambs.net.co.uk
http://www.cambs.net
http://www.edsim2000.com
--------------------------------------------
----- Original Message -----
From: "Don Hyde" <@spam@DonHKILLspamspamAXONN.COM>
To: <KILLspamPICLISTKILLspamspamMITVMA.MIT.EDU>
Sent: Thursday, January 25, 2001 8:37 PM
Subject: Re: [OT]: GPS Receivers (Global Positioning System)


> Try:
> http://www.axiomnav.com
>
> > {Original Message removed}

2001\01\25@192643 by cflat

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I just got through researching many of these after no replies from an
inquiry to this list.  I found about a half a dozen or so out there
but the best buy (on paper at least) was the Garmin unit.  Motorola,
Magellan, Ashetech, etc were at least $125 in single quantity.  The
Garmin was smaller and only $100 in single quantity for the version I
needed.  They have 3 models.  Someone else replied to your inquiry
stating that Garmin's units were in a plastic case but they have
these boards, not in plastic cases, that were what I needed.  All the
others in this price range were only 8 channel receivers versus 12
for the Garmin.  Also, most of the others only talk at the NMEA
standard of 4800 baud where the Garmin defaults to this but can go to
19.2KB.  I suggest going to their site and downloading the data.  I
contacted them to find out who sells them and they told me I could
buy direct.  I will attach the email they sent me with the pricing
for you.  I ordered a unit, GPS25-LVC, and the eval kit which has
connectors and an antenna.  The only thing I didn't like as much as
the Motorola unit was the unusual connector they use on the Garmin.
The Motorola uses a standard header type connector.
Good Luck,
Charles

Garmin Wrote:

====================================================

{Quote hidden}

====================================================

{Quote hidden}

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