Article
20 sectionsContents
- Location of antennas
- Signal
- Time signal
- Experimental civil defence emergency signal
- Civil protection and weather forecast signal
- Future and call sign
- Time code details
- Amplitude modulation
- Phase modulation
- Time code interpretation
- Reception area
- Control
- Accuracy
- Transmission
- Reception
- Network Time Protocol reference clock use
- See also
- References
- Further reading
- External links
thumb|Low-cost DCF77 receiver
DCF77 is a German longwave time signal and standard-frequency radio station. It started service as a standard-frequency station on 1 January 1959. In June 1973, date and time information was added. Its primary and backup transmitters are located at in Mainflingen, about south-east of Frankfurt am Main, Germany. The transmitter generates a nominal power of 50 kW, of which about 30 to 35 kW can be radiated via a T-antenna.