Links

Introduction in the GPS system for beginners

http://www.trimble.com/gps/index.html

Garmin GPS Guide for Beginners

http://www.aero.org/publications/GPSPRIMER/index.html

http://www.howstuffworks.com/gps1.htm

Introduction in the GPS system for advanced

http://www.navcen.uscg.gov/pubs/gps/gpsuser/gpsuser.pdf ( 215 pages)

NMEA communications protocol

http://home.pacific.net.au/~gnb/gps/nmea.html

http://www.gpsinformation.org/dale/nmea.htm

Rockwell binairy communications protocol

http://www.casde.iitb.ac.in/IMSL/motion/gps/

Interfacing

http://www.ziegler.desaign.de/GPS/psion.htm

http://psn.quake.net/gps/index.html

IRDA Infrared interface: http://home.tiscali.nl/~t_aalberts/index.htm

Gpsmon

GPSMON is a DOS program that is made by Rockwell specially for the Jupiter modules.  The program communicaties in NMEA0183 mode as well as in Rockwell binary mode.  In binary mode you get much more details about reception quality and other details about the satellites and the receiver.  It is also possible to change a lot of parameters in the receiver.
The program works fine on Windows 2000 in tekst mode.  There is also a Windows version but it seems to be not quite as powerful.  The manual of GPSMON is contained within the 190 pages document "designerguide.pdf" that can be downloaded here or is available .

Generic GPS monitor programs

Csigps, VisualGPS

Compacte Windows application for GPS monitoring.
CsiGps: http://www.csi-wireless.com/library/software/p0060010.zip

More extensive windows GPS monitoring application.
VisualGPS: http://www.visualgps.net/VisualGPS/

WinPlotGPS is a Microsoft Windows based program that displays the data from one or two GPS receivers on a map
WinplotGPS: http://psn.quake.net/winplotgps/

Mapping software

Tests

GPS & Timing

Tardis

Tardis is a Windows clock synchronisation program that also can use the GPS data if a GPS receiver is connected to a serial port.  It has a generic NMEA mode that works with the Rockwell Jupiter receiver.  But the best synchronisation is achived when Tardis is configured to communicatie with a "Kallisto klok module". In this mode there is a very accurate synchronisation.  Tardis is shareware.
http://www.kaska.demon.co.uk/

NMEATime

NMEAtime is a windows clock synchronisation program that can use the 1PPS hardware puls from the GPS module to synchronize the PC's real-time clock

http://www.visualgps.net/NMEATime/default.htm

Timeserv for Windows NT:

http://www.niceties.com/TimeServ.html

http://www.ip.pt/coaa/gpstime.htm

Dos:

http://www.geocities.com/kiwi_36_nz/kea/kea.htm

http://www.geocities.com/kiwi_36_nz/kiwi/kiwi.htm

NTP

Source code for implementation of NTP  protocol, with GPS support.
http://www.ntp.org/

http://www.ntp.org/ntpfaq/NTP-s-refclk.htm

http://www.geocities.com/kiwi_36_nz/kiwi/kiwi.htm

Frequency standard locked on GPS

http://www.rt66.com/~shera/index_fs.htm

http://home.teleport.com/~oldaker/10mhz_construction.htm

http://w3ref.cfn.ist.utl.pt/cupido/reflock.html

Radiopropagation research with chirpsounders and GPS

http://www.qsl.net/zl1bpu/chirp/chirps.html

http://www.qsl.net/pa1are/chirps.html

http://www.asenior48.freeserve.co.uk/chirpview.html

APRS

http://www.jancorver.org/info/aprs/index.htm

Homebrew GPS antenna