GPS and Timing Information

TAC2 and NTP
TAC2 GPS clock assembly. NTP setup and configuration. High precision frequency standard via GPS PPS discipline. Detailed build instructions.
[Updated June 27 2006]

GPS Software
Software that will display the output of Motorola GPS receivers and HP Z3801A. Can graph the output and display via HTML and curses. Software support is now hosted via the GS3 Technologies Inc. web site.
[Updated May 2015]

GPS Hardware
A guide on building a GPS disciplined Frequency Standard. Information on frequency standards and instrumentation.
[Updated September 27 2002]

HP Z3801A graphs
Live graphs of the 2 HPZ3801A GPS Timing receivers.