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 <shali...@gmail.com> To: Time-Nuts <time-nuts@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.bori...@screen.it> ender: time-nuts-boun...@febo.com ate: Sat, 7 Jan 2012 02:00:21 o: Discussion of precise time and frequency measurement<time-nuts@febo.com> eply-To: Discussion of precise time and frequency measurement <time-nuts@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 <dlewis6...@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-boun...@febo.com [mailto:time-nuts-boun...@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" <dlewis6...@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 > > > > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ______________________________________________ ime-nuts mailing list -- time-nuts@febo.com o unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts nd follow the instructions there. ______________________________________________ ime-nuts mailing list -- time-nuts@febo.com o unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts nd follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
