GPS to MSF/DCF time encoder resources page
Tiny PIC-based PCB connects to a low-cost Garmin 18xLVC-OEM GPS receiver and generates a 'perfect', 1us accurate, MSF or DCF time-code pulse stream.
Downloads
- Documentation
- Schematic (RevB)
- Gerber files (RevB)
- Parts-list (RevB)
- Source code (v111)
- Hex object code (v111)
- Garmin 18x firmware update pack
- Development tools for PIC microcontrollers
- In-system programming PIC microcontrollers
- Garmin 18x series data sheet
- RS 18x product page
- PTB's DCF documentation
- NPL's MSF web pages
- DST explained by Wikipedia
- See also DCF Receiver project
Please be aware: as of Aug 2019 the Garmin GPS receiver used in this project no longer provides the correct date, presumably due to a bug in its firmware. Other GPS recievers are available, make sure you have a PPS signal and check it's default baud rate - the published source code works at 9600baud but can easily be changed.