[time-nuts] Getting my Rockwell D200 GPS to work

Sat Jan 7 17:29:53 UTC 2012

Ernie:  Do you have a link, pls, ...to LM49 that will work with WindowsXP?

Thanks, ...-Don

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-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Erno Peres
Sent: Saturday, January 07, 2012 8:40 AM
To: shalimr9 at gmail.com; time-nuts at febo.com
Subject: Re: [time-nuts] Getting my Rockwell D200 GPS to work

Hi Don,

this type of receiver sometimes need a good 15-20 min to find their place...
they are not very sensitive...
also if the receiver comes-up in NMEA mode then they probably used a spec
application and   it
is much  better   to   config the 20 pin connectors to Rockwell-binary
mode and use the " LabMon 49 " software  until the receiver alive and then
you can config back to NMEA mode.....

Rgds Ernie.

-----Original Message-----
From: shalimr9 <shalimr9 at gmail.com>
To: Time-Nuts <time-nuts at febo.com>
Sent: Sat, Jan 7, 2012 3:21 pm
Subject: Re: [time-nuts] Getting my Rockwell D200 GPS to work

I test all my GPS receivers with a hockey puck type antenna attached to the
wall 
n my hamshack, which is upstairs, but under the ceiling and the roof and I
have 
ever had one fail to lock within reasonable time. With this setup,
Thunderbolts 
ccasionally go on holdover, but never for very long.
Of course, when I plug them in the external Symmetricom antenna, they
typically 
ee more satellites and don't go into holdover.
I am in Northwest Florida, so probably at a lower latitude than most of you,
so 
he same setup farther north may not work as well.
Didier KO4BB
Sent from my BlackBerry Wireless thingy while I do other things...
-----Original Message-----
rom: Azelio Boriani <azelio.boriani at screen.it>
ender: time-nuts-bounces at febo.com
ate: Sat, 7 Jan 2012 02:00:21 
o: Discussion of precise time and frequency measurement<time-nuts at febo.com>
eply-To: Discussion of precise time and frequency measurement
<time-nuts at febo.com>
ubject: Re: [time-nuts] Getting my Rockwell D200 GPS to work
Absolutely yes, the antenna must see the sky, not the ceiling. Even very
ensitive GPS receivers must have a good view of the sky for the first fix,
hen you can bring the antenna indoor. You can try positioning the antenna
ery near a window for just a test but better a good view. The car roof is
kay but you must wait several minutes (12 minutes at most) to let the
eceiver download the almanac.
On Sat, Jan 7, 2012 at 1:54 AM, Don Lewis <dlewis6767 at austin.rr.com> wrote:
> Maybe I didn't take positioning seriously.

 The antenna is currently on a shelf above my workbench, ....there is a
 ceiling and an upstairs above it. Then the roof.

 Is it very critical to be outside in order to 'see' the sky?

 I did take it out once and set the antenna on my car roof, ....but still no
 satellites.

 -Don

 -------------------------------------------------------------------------

 -----Original Message-----
 From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
 Behalf Of bownes
 Sent: Friday, January 06, 2012 6:49 PM
 To: Discussion of precise time and frequency measurement
 Cc: Discussion of precise time and frequency measurement
 Subject: Re: [time-nuts] Getting my Rockwell D200 GPS to work

 Step one...is the antenna in a location where it can see they sky?

 Sorry if it is a stupid question but you already said it was plugged in. :)

 On Jan 6, 2012, at 19:24, "Don Lewis" <dlewis6767 at austin.rr.com> wrote:

 > Can someone please give me some pointers (my first time with a GPS
 module).
 >
 >
 >
 > A little hand-holding, pls.
 >
 >
 >
 > I bought three of these Rockwell D200 GPS receivers. (It's little GPS PWB
 > with an antenna connector and pins for connecting to the RS232- PC)
 >
 >
 >
 > All three 'appear' to work the same way (no apparent capture of
 satellites).
 >
 >
 >
 > Here's what I have:
 >
 >
 >
 > 1.    VisualGPS installed and running.
 > 2.    A small USB-RS232 card installed and appears to be operational.
 > 3.    Small GPS active antenna plugged in.
 > 4.    VisualGPS monitor just repeatedly displays:
 > $GPGGA,,,,,,0,00,,,,,,,*66
 > 5.    I think I understand this to be NMEA code to mean no satellites
 have
 > been acquired.
 > 6.    The Rockwell D200 draws ~180ma (5V) with no antenna and ~190ma with
 > the small active antenna plugged in.
 >
 >
 >
 > What am I doing wrong?  Other than maybe cheap china gps' and antenna???
 > But it is what I could afford and thought it would be cheap to learn on.
 >
 >
 >
 > Thanks for your help.
 >
 >
 >
 > -Don
 >
 >
 >
 >
 >
 >
 >
 > _______________________________________________
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