Searching \ for '[OT] GPS Receiver' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: techref.massmind.org/techref/io/sensors.htm?key=gps
Search entire site for: 'GPS Receiver'.

Exact match. Not showing close matches.
PICList Thread
'[OT] GPS Receiver'
1998\04\27@111139 by Hardy/Rafael Pinto

flavicon
face
part 0 1524 bytes
<META content=text/html;charset=iso-8859-1 http-equiv=Content-Type>
<META content='"MSHTML 4.71.1712.3"' name=GENERATOR>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT color=#000000 size=2>Hi guys,</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>&nbsp;&nbsp;&nbsp; A few days ago I saw some
messages about people using PICs to control GPS receivers. I'm interested in
exchange some ideas about the possibility of building a (home-brew) GPS receiver
of my own.</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>&nbsp;&nbsp;&nbsp; If anyone can help me, please
e-mail me privately. BTW, I'm electronic engineer with signal processing MSc
degree, so don't get worried about being too complex!</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>&nbsp;&nbsp;&nbsp; Regards,</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>&nbsp;&nbsp;&nbsp; Rafael Pinto</FONT></DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

</x-html>

1998\04\29@063506 by Hardy e/ou Rafael Pinto

flavicon
face
Hi guys,

   A few days ago I saw some messages about people using PICs to control
GPS receivers. I'm interested in exchange some ideas about the possibility
of building a (home-brew) GPS receiver of my own.

   If anyone can help me, please e-mail me privately. BTW, I'm electronic
engineer with signal processing MSc degree, so don't get worried about being
too complex!



   Regards,

   Rafael Pinto

1998\04\29@134353 by wwl

picon face
On Wed, 29 Apr 1998 07:24:56 -0300, you wrote:

>Hi guys,
>
>    A few days ago I saw some messages about people using PICs to control
>GPS receivers. I'm interested in exchange some ideas about the possibility
>of building a (home-brew) GPS receiver of my own.
>
>    If anyone can help me, please e-mail me privately. BTW, I'm electronic
>engineer with signal processing MSc degree, so don't get worried about being
>too complex!
SGS-Thomson has just announced a 2-chip GPS chipset which integrates
almost all of a GPS receiver.
For a home-brew system, I'm sure it would be far  cheaper and easier
to buy  a commercial unit, maybe modifying it for your needs - you can
get GPSs for about UKP100 retail & I doubt you could build a 1-off for
anything close to that, certainly the actual low-level positioning
software is very complex, and I doubt it could be done without access
to a GPS simulator (or mobile workshop?!)
If you want to customise & build-in GPS to some other system, I think
OEM GPS modules are about UKP100-150 in low volumes.
I'm sure home-brewing a GPS would be very interesting & challenging
but why re-invent the wheel?
    ____                                                           ____
  _/ L_/  Mike Harrison / White Wing Logic / spam_OUTwwlTakeThisOuTspamnetcomuk.co.uk  _/ L_/
_/ W_/  Hardware & Software design / PCB Design / Consultancy  _/ W_/
/_W_/  Industrial / Computer Peripherals / Hazardous Area      /_W_/

1998\04\29@222952 by ape

flavicon
face
Mike Harrison wrote:

> I'm sure home-brewing a GPS would be very interesting & challenging
> but why re-invent the wheel?
>      ____                                                           ____

The educational learning experience of knowing how it is done!!!  Thats why!!!

1998\04\30@021825 by tjaart

flavicon
face
Mike Harrison wrote:

{Quote hidden}

Good point. There are currently around 5 or 6  chipsets available.The chipsets are quite cheap, but
the real cost comes in the algorithms
used to drives these chipsets. The vendors all have 'development systems'
where you get all the hardware along with the embedded software
(almost always in C). You pay through your nose (and some other orifices
too) for these systems. Some vendors also slap royalties on a per-unit
base.

If you really want to DIY a GPS receiver, I'd suggest going to Navtech
Seminars' site and buying a good book or two through them. I've bought
a few books and reference manuals through them, and they are very
reasonable. You'd have some serious RTFM-ing ahead of you.

<FLAME SUITE ON>
For General Information (Everybody) :
Please, please quit talking about "a GPS" when you actually mean
"a GPS receiver". Saying that you are holding "a GPS" in your hand
is optimistic, because the GPS is the complete system consisting of about
32 satellites around the world. It is like talking of an "LCD display"
<GRRRR>.
<FLAME SUIT OFF>

--
Friendly Regards

Tjaart van der Walt
.....tjaartKILLspamspam@spam@wasp.co.za

|--------------------------------------------------|
|                WASP International                |
|R&D Engineer : GSM peripheral services development|
|--------------------------------------------------|
|SMS 0832123443spamKILLspamwasp.co.za  (160 chars max)|
|     http://www.wasp.co.za/~tjaart/index.html     |
|Voice: +27-(0)11-622-8686  Fax: +27-(0)11-622-8973|
|          WGS-84 : 26¡10.52'S 28¡06.19'E          |
|--------------------------------------------------|

1998\04\30@051212 by Steve Baldwin

flavicon
face
> <FLAME SUITE ON>
> For General Information (Everybody) :
> Please, please quit talking about "a GPS" when you actually mean
> "a GPS receiver". Saying that you are holding "a GPS" in your hand
> is optimistic, because the GPS is the complete system consisting of about
> 32 satellites around the world. It is like talking of an "LCD display"
> <GRRRR>.
> <FLAME SUIT OFF>

<PEDANTIC>
Let's not stop there.
What you are really holding is an antenna optimized to the
frequencies transmitted by the satellites of the Global Positioning
System, several high gain amplifiers, filters, some Application
Specific Integrated Circuits mounted on an epoxy / fibreglass
composite material, mounted in a carbon impregnated polymer housing
with a small transparent section, behind which is a Liquid Crystal
Display providing a variety of time and position data.
There's some software too.
</PEDANTIC>
:-)

Steve.

1998\04\30@052124 by tjaart

flavicon
face
Steve Baldwin wrote:

{Quote hidden}

Right you are!
Now let's make an acronym for it, shall we?
aottftbtsotGPSshgafsASICmoae/fcmmiaciphwastsbwiaLCDpavotapdTsst

<BG>
Do you think leaving some of the letters in lower case makes it more readable,
or should we change everything to higher case ?

Maybe I'll go make a call on my GSM now...

--
Friendly Regards

Tjaart van der Walt
.....tjaartKILLspamspam.....wasp.co.za

|--------------------------------------------------|
|                WASP International                |
|R&D Engineer : GSM peripheral services development|
|--------------------------------------------------|
|SMS EraseME0832123443spam_OUTspamTakeThisOuTwasp.co.za  (160 chars max)|
|     http://www.wasp.co.za/~tjaart/index.html     |
|Voice: +27-(0)11-622-8686  Fax: +27-(0)11-622-8973|
|          WGS-84 : 26¡10.52'S 28¡06.19'E          |
|--------------------------------------------------|

1998\04\30@100430 by Frank Mckenney

flavicon
face
Hardy e/ou Rafael Pinto <cppintospamspam_OUTNETRIO.COM.BR> wrote:
>    A few days ago I saw some messages about people using PICs to control
>GPS receivers. I'm interested in exchange some ideas about the
>possibility of building a (home-brew) GPS receiver of my own.

Rafael (and other possibly interested parties),

You might want to look at "Jim Bixby's DGPS Receiver Project" at

   http://web.abnormal.com/dgps/bix/

I'm not certain whether this is an outgrowth of the project described at

   http://home1.gte.net/clseng/DGPS/Construction.txt

but it seems to have much in common.

Hope this helps...

Frank McKenney            / OS/2 Advisor (OS2BBS)
McKenney Associates       / Richmond, Virginia / (804) 320-4887
Internet: @spam@rrs0059KILLspamspamibm.net / TalkLink: WZ01123


'[OT] GPS Receiver'
1998\05\04@135254 by Josef Hanzal
flavicon
face
>> I'm sure home-brewing a GPS would be very interesting & challenging
>> but why re-invent the wheel?
>>      ____                                                           ____
>
>The educational learning experience of knowing how it is done!!!  Thats why!!!
>

And you may even reinvent a better wheel...

Josef

1998\05\04@163609 by Scientific Measurement Group

flavicon
face
Re-inventing the wheel is also what makes it go 'round.

----------
> From: Josef Hanzal <KILLspameuroclassKILLspamspamPHA.PVTNET.CZ>
> To: RemoveMEPICLISTTakeThisOuTspamMITVMA.MIT.EDU
> Subject: Re: [OT] GPS Receiver
> Date: Monday, May 04, 1998 11:47 AM
>
> >> I'm sure home-brewing a GPS would be very interesting & challenging
> >> but why re-invent the wheel?
> >>      ____
____
> >
> >The educational learning experience of knowing how it is done!!!  Thats
why!!!
> >
>
> And you may even reinvent a better wheel...
>
> Josef

1998\05\04@163609 by Scientific Measurement Group

flavicon
face
Re-inventing the wheel is also what makes it go 'round.

----------
> From: Josef Hanzal <spamBeGoneeuroclassspamBeGonespamPHA.PVTNET.CZ>
> To: TakeThisOuTPICLISTEraseMEspamspam_OUTMITVMA.MIT.EDU
> Subject: Re: [OT] GPS Receiver
> Date: Monday, May 04, 1998 11:47 AM
>
> >> I'm sure home-brewing a GPS would be very interesting & challenging
> >> but why re-invent the wheel?
> >>      ____
____
> >
> >The educational learning experience of knowing how it is done!!!  Thats
why!!!
> >
>
> And you may even reinvent a better wheel...
>
> Josef

More... (looser matching)
- Last day of these posts
- In 1998 , 1999 only
- Today
- New search...