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GPS
Sci.Electronics.Design is a worldwide Usenet news group that is used to discuss various aspects of Electronic Circuit Design.
We found 216 threads matching "gps"
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The most relevant threads are listed first
KX155A/KX165A with lower GPS interference in the RF output?
Peter - 2009-04-16 08:05:00
Hi All,
I have a case of that well known interference on the 13th harmonic of
121.15 121.175 121.20 messing up GPS.
The standard TED filters don't do much, probably because I cannot fit
them precisely on the back of the radios but there is a ~ 2ft length
of coax cable which is inaccessible ...
Re: GPS Question
John Larkin - 2010-08-23 15:29:00
On Mon, 23 Aug 2010 11:13:44 -0700 (PDT), mpm
wrote:
> Does anyone know when GPS signals first became available for use by
> private enterprise?
> Was it prior to May 1988, or afterwards?
>
> I may need this information to fend off a groundless, analysis-free
> 103 rejection at the pate...Re: GPS Screens Seem too Small?
Paul Hovnanian P.E. - 2008-07-20 19:39:00
D from BC wrote:
>
> On Sat, 19 Jul 2008 10:52:26 -0700, "Paul Hovnanian P.E."
> wrote:
>
> > D from BC wrote:
> > >
> > > I'm looking at GPS receivers.
> > > The type for those that get lost on the local roads :P
> > >
> > > Is it me or do those little displays seem .....Frequency Standard - Rubidium or GPS?
bart - 2009-09-02 10:23:00
Hi all,
I'm looking for some sort of frequency standard (10 MHz ref.?).
Ebay has rubdium frequency standards for under $100.00
and there are also GPS disciplined OXCO frequency standards for
~$150.00 .
My question :
Is a 10-20 year old rubidium standard more accurate (even with aging
...GPS 12Ch, 16CH 32CH 50Ch
Joe G (Home) - 2008-07-28 06:52:00
What's the difference between the number of GPS channels?
What is the performace difference
Thanks in Advance
Joe
...Re: prototyping GPS
JosephKK - 2008-10-26 14:56:00
On Fri, 24 Oct 2008 17:01:06 -0500,
hal-usenet@ip-64-139-1-69.sjc.megapath.net (Hal Murray) wrote:
> http://www.u-blox.com/customersupport/docs/GPS_Compendium(GPS-X-02007).pdf
Did you really think it is right to inflict us with advertising?
...GPS Navigator vs Mini-Notebook+GPS
D from BC - 2009-03-27 23:38:00
I need GPS Navigation.
What's the best bang for the buck?
A 7" GPS Navigation System
These range from ~$160.00 to $600.00 on Eb*y.
OR......
Get an Acer mini-notebook
http://www.atic.ca/index.php?page=LongDesc&sku=52354
$282.00Can
+ GPS receiver
http://www.atic.ca/index.php?page=Lon...prototyping GPS
RichD - 2008-10-20 22:49:00
GPS is now the reference for measuring distance and location
on earth... which invites the question: how was it originally tested
and calibrated? I mean, you throw those satellites up there,
power on, get some data... but how do you evaluate the data?
GIGO is reality, and we must pay homage to ...Calculating distance using GPS
jdhar - 2008-09-09 19:30:00
Using standard RMC NMEA strings from a GPS unit, I'm trying to figure
out the best way to calculate distance traveled over time. The two
methods I have are:
- Use lat/long. coordinates and calculate distance using Haversine
method (or similar) each sample, and keep a running total of distance
...GPS Inaccuracies and NMEA 1083 protocol
Joe G (Home) - 2009-04-17 06:04:00
Hi All,
I am looking for a good indepth forum on GPS and the NMEA 0183 protocol.
What the protocol terms mean "indepth".
Any pointer to a good forum would be appreciated.
Joe
...Re: Win Hill: Inverse Marx Generator ??
Richard Henry - 2010-07-12 13:14:00
On Jul 12, 6:42=A0am, John Fields wrote:
> On Sun, 11 Jul 2010 22:31:43 -0700, John Larkin
>
> wrote:
> > On Sun, 11 Jul 2010 22:24:30 -0700,
> > "JosephKK" wrote:
> > > Tell that to the designers of the GPS system.
>
> > How does E=3Dmc^2 relate to GPS?
>
> ---
> First...Sending commands to a GPS module
Piglit - 2010-07-23 21:52:00
I have a SSF2929P gps module which I wish to enable the ZDA string.
If I apply power to the module it happily spits out data, finds
sattelites etc
and displays results on my terminal, but nothing I send to the module
will stop the flow of data and put it into a mode to accept the
commands.
I'm...Re: KX155A/KX165A with lower GPS interference in the RF output?
Peter - 2009-04-25 04:42:00
Brian Whatcott wrote
> > That 2ft length of coax is hard to get to, due to the way the avionics
> > stack is constructed.
>
> Hmmm...I think that means you cannot visualize the coax route up close
> and personal.
Correct - that ~ 2ft length cannot be seen.
And it is sure to...GPS tracker
2009-04-10 03:57:00
Yes, if you own this, you will never afraid your car will be stolen,
never worry about you can't find your children or loved pet!!
What is that? ? Yes, it is our GPS tracker. It is smaller than one
name card and easy to hide. The GSM card will send the information of
your car/children/pet to y...LNAs, Noise Figures and Compression Points
Chris - 2008-09-02 16:52:00
Once you saturate an LNA does the noise figure begin to increase
rapidly?
I was working on a project which utilized an LNA in an RFD path to
ultimately feed a GPS receiver. While watching the GPS L1 center
frequency (1575.42 MHz) at the input to the GPS receiver with a
spectrum analyzer we b...Re: Rarely I get to brag...
Jim Thompson - 2009-10-26 10:49:00
On Sun, 25 Oct 2009 22:04:49 -0500,
hal-usenet@ip-64-139-1-69.sjc.megapath.net (Hal Murray) wrote:
>
> > Neat, 0.8 mA. I can see GPS applications, but cell phones not so much.
> > I just don’t see a practical app in the phone, maybe the Japanese will
> > find it a novelty.
>
> Cell ph...Adapting a Garmin Traffic Receiver to car antenna?
DaveC - 2010-02-23 15:25:00
Garmin makes an "integrated" FM traffic info receiver for some models of GPS
that allows connection to the car's AM/FM antenna. But not my model (Nuvi
660); I must use only the GTM20, a cigarette-lighter-powered model:
Benefits of using the car's antenna are mostly stealth: the
cord-t...Re: How do GPS tracking devices work?
WarmUnderbelly - 2010-05-16 10:36:00
On Sun, 16 May 2010 01:07:13 -0700 (PDT), den wrote:
> Lo Jack doesn't exist
>
You probably do not even know how Lo Jack works either.
It too has not a goddamned thing to do with GPS.
Lo Jack is ONLY a radio locator beacon, and nothing more.
It sends OUT pings and that is ...Re: GPS Navigator vs Mini-Notebook+GPS
Jim Thompson - 2009-04-02 11:53:00
On Wed, 1 Apr 2009 21:49:13 -0700 (PDT), "miso@sushi.com"
wrote:
[snip]
> I've been on the Jersey
> Turnpike. They can change the speed limit electronically. Talk about
> nanny-ism.
> http://www.tfhrc.gov/pubrds/04nov/images/pisano5.jpg
[snip]
Anyone who lives back East deserves it ;-...How do GPS tracking devices work?
Fester Bestertester - 2010-05-15 01:40:00
Specifically, how do they transmit if they are, for example, inside a
shipping container?
Is there a hole drilled for an antenna? Or a fiberglas patch made to replace
some of the steel top or side?
Thanks.
...Re: hobbyist frequency standard
Martin Brown - 2009-10-25 05:23:00
Hal Murray wrote:
> > The usual method is to use WWVB at 60 kHz, with a ferrite loopstick
> > antenna, a crystal filter, and a PLL. You can get nice 2400 mu ferrite
> > from Amidon. The ground wave delay is more stable than the sky wave
> > from the 10 MHz stations.
>
> "Usual" is a...:Z0Rj Garmin GPS :Z0Rjj!
Savage - 2008-07-15 09:18:00
GARMIN
TOM-TOM
Get Them While They Last!!
http://www.gpstakesyou.com
0C Qf&GLebX=\wY
...Re: Capacitor ESR Meters?
RogerN - 2010-02-11 06:51:00
"Jim Thompson" wrote in
message news:eei5n59gg5de33lg0g8u3d6qglo2qd2opl@4ax.com...
> On Wed, 10 Feb 2010 08:02:55 -0600, Jim Yanik
> wrote:
>
>
> Now all I need is a remote control video camera to handle the karate
> events ;-)
>
> ......Re: Ultra low frequency VCO
Joel Koltner - 2010-07-12 13:13:00
"Jim Thompson" wrote in
message news:dcim36poktoi3gc0keapvnbjlpsri0lqj4@4ax.com...
[coaxial ceramic resonators]
> I've been "using" them... designing them into GPS LO's since before
> you were born ;-)
What's the advantage -- for you -- over crystals? Just lower cost?
---Joel
...Re: Hee! Hee! Hee!
Joel Koltner - 2009-11-13 20:57:00
"Jim Thompson" wrote in
message news:db3sf55hkqeumq36l8lqkpo2u1nti3bl09@4ax.com...
> I won't tell... I want that island to myself ;-)
I'll be sure to mention to Obama's men that you need to be on the
high-priority list for the GPS tracking implant.
It's for your own good, of course. :...~~~~~ ROUTE PLANNING ~~~~~
Staci DENLEY - 2009-10-09 11:24:00
.
~~~^^^~~~
==================================================
==================================================
ENTER HERE:
> > > http://i-finally-found.cn/1/route-planning < < <
=================...GSP module
2008-02-12 17:48:00
I have got myself a GPS module from iWOW but do not know how to hook
it up to my computer's serial port. Am a newbie and references/
instructions would be appreciated.
Specifically, what should I connect to the different pins. The pin
diagram is available at http://www.iwow.com.sg/images/GP-81...Re: Would magn. pole reversal actually mess up electronic equipment?
Joel Koltner - 2009-11-30 16:22:00
"Rich Grise" wrote in message
news:pan.2009.11.30.21.00.36.2610@example.net...
> All of the Boy Scouts would get hopelessly lost...
Most of them use GPS receivers these days and wouldn't know how to use a
compass in the first places. :-)
I think it's kinda cool that orienteering will ...Re: Ultra low frequency VCO
JosephKK - 2010-07-12 23:47:00
On Mon, 12 Jul 2010 09:58:32 -0700, Jim Thompson
wrote:
> On Mon, 12 Jul 2010 08:33:56 -0700, John Larkin
> wrote:
>
> > On Mon, 12 Jul 2010 10:40:00 -0400, Phil Hobbs
> > wrote:
> >
> > > Jim Thompson wrote:
> > > > On Fri, 09 Jul 2010 14:08:28 -0400, Phil Hobbs
> > > > ...Re: GPS Navigator vs Mini-Notebook+GPS
Rich Webb - 2009-04-02 11:58:00
On Thu, 2 Apr 2009 08:45:46 -0700, "Joel Koltner"
wrote:
> wrote in message
> news:576728b1-ff1e-427b-b754-3f64da3c8e58@x1g2000prh.googlegroups.com...
> "Gee, a database update is $100. I can just imagine how well those $99
> navigators work."
>
> Yep... at $99 most people are just ...OT: maps.google.co.uk
Paul Hovnanian P.E. - 2009-07-15 23:25:00
I'm attempting to scrape some co-ordinates off Google maps for an
upcomming trip to Great Britain. Getting the lattitude and longitude is
no problem....but I don't see where the map datum is specified anywhere.
That could make a difference of a few hundred meters when I load them
into my GPS a...Re: Does anyone make....
Clint Sharp - 2009-12-30 15:20:00
In message , Jim Thompson
writes
> Yep :-( New enough to have GPS mapping and navigation, but old enough
> that Bluetooth via the sound system wasn't yet standard.
Can you not get it as a retro fit from the dealer though?
I've had a couple of bluetooth hands free units now, the current...Re: OT: Post Turtle
John Larkin - 2008-06-19 16:58:00
On Thu, 19 Jun 2008 09:26:27 -0700 (PDT), Richard Henry
wrote:
> On Jun 19, 8:01 am, John Larkin
> wrote:
> > On Thu, 19 Jun 2008 07:53:53 -0700 (PDT), Richard Henry
> >
> > wrote:
> > > On Jun 19, 6:58 am, John Larkin
> > > wrote:
> >
> > > > Damn, I guess I'll go ba...Re: OT: High coolness factor
brent - 2010-04-10 21:33:00
On Apr 10, 9:08=A0pm, "Martin Riddle" wrote:
>
>
> Cheers
Lots of cool stuff being made with feedback control these days.
Noise canceling headphones come to mind. My friend has a globe that
suspends in the air with magnets. I saw a really cool helicopter
device (maybe posted he...Re: Looking for Microcontroller Recommendations
Nobody - 2010-01-16 03:35:00
On Thu, 14 Jan 2010 23:38:45 +0000, Jan Panteltje wrote:
> I bought a book on ARM in the eighties? I was also the future then ;-)
> But somehow x86 grabbed it.
I'm fairly sure that there are more ARMs in use than x86's. Practically
evey mobile phone has one, the Nintendo DS has two, iPods ...Re: AVL?
Emanuele - 2008-09-10 06:48:00
a7yvm109gf5d1@netzero.com ha scritto:
> Hey guys and gals,
> What is an AVL in the electronics world? It seems to stand for
> Approved Vendor List, which seems to me to mean a list of vendors,
> that have been approved to do business with.
>
> Is this correct?
>
> I am being asked ...Re: My mouse broke !
Jeff Liebermann - 2008-01-16 13:04:00
ChairmanOfTheBored hath wroth:
> Hell, dude, for $15 you can get a freakin' optical mouse with no moving
> parts. That is, if you are not one of those pussies that think that
> someone can watch what you are doing with it.
Even the cheapest optical mouse has at least one moving part. ...Re: Do/Don't? Soldering Wire Tips Before Sticking into Terminal Block
D from BC - 2010-03-08 15:02:00
In article , not.going.to.be@seen.com
says...
>
> keithw86@gmail.com wrote:
> > On Mar 8, 12:15 pm, D Yuniskis wrote:
> > > nospam wrote:
> >
> > > [hmmm... that begs the question: what term to use
> > > to refer to describe the "side" (direction) that you
> > > turn ...Re: Ultra low frequency VCO
JosephKK - 2010-07-14 01:18:00
On Mon, 12 Jul 2010 21:01:50 -0700, Jim Thompson
wrote:
> On Mon, 12 Jul 2010 20:47:12 -0700,
> "JosephKK" wrote:
>
> > On Mon, 12 Jul 2010 09:58:32 -0700, Jim Thompson
> > wrote:
> >
> > > On Mon, 12 Jul 2010 08:33:56 -0700, John Larkin
> > > wrote:
> > >
> > > > On Mon, ...Re: Adapting a Garmin Traffic Receiver to car antenna?
Herbert John "Jackie" Gleason - 2010-02-28 16:32:00
On Sun, 28 Feb 2010 10:53:35 -0800 (PST), JDG
wrote:
> On Feb 28, 6:28 pm, Bart! wrote:
> > On Sun, 28 Feb 2010 12:46:09 -0500, Steve Stone
> > wrote:
> >
> >
> >
> > > Bart! wrote:
> >
> > > > Then, the device should have a separate antenna port.
> >
> > > It sho...