This is a structured list of posts covering DCF77.

  • How the DCF77 receiver works

    D = german; C = long wave signal; F = Frankfurt; 77 = frequency The DCF77 radio controlled clocks receive the official time of the Federal Republic of Germany from Physikalisch-Technischen Bundesanstalt (PTB) in Braunschweig and transmit it to computers and systems via various interfaces. The radio synchronisation of the DCF77 transmitter in Mainflingen (50 01 N, 9 00 0) reaches a […]

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  • Function and Comparison of Accuracy DCF77 and GPS Time Signal Receiver

    The time code transmitter DCF77 emits a time signal and time code information in the long wave range of 77.5 kHz. The time information is visualised by the lowering of the carrier power to 25% of the standard value (amplitude modulation). The beginning of a second is marked by the beginning of a lowering. The […]

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