It will certainly help to have visible sky and a metal ground plane. I have mine in a skylight in my office and they still only 'see' about half of the sky due to the slope of the skylight and living on the south side of a hill.
So, putting one where it actually can see the sky and letting it sit for 20-60 minutes would tell you something more. On Jan 6, 2012, at 19:54, "Don Lewis" <[email protected]> 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: [email protected] [mailto:[email protected]] 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" <[email protected]> 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 -- [email protected] >> To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
