I've built my own MSF and DCF77 radio clocks using instructions from
Jonathan Buzzard's
Simple Radio Clock for PCs
guide.
A box connected to the serial port provides input/output for all devices with a pass-through USB connector to power the GPS.
Time Signals
DCF77
The first radio clock receiver I set up, on August 29th 2004.
- Location
- Mainflingen, Hesse, Germany (50°01'N 9°00'E)
- Power
- 50kW
- Frequency
- 77.5KHz
MSF
The second radio clock receiver I set up, on March 4th 2005.
- Location
- Anthorn, Cumbria, England (54°54.6'N 3°16.8'W)
- Power
- 50kW
- Frequency
- 60KHz
GPS
I bought a Garmin GPS 18 and it's been running since October 20th 2007.
- Output
- NMEA 2.30
- Accuracy
- 1Hz pulse to 1µs