Y3S was the callsign of an East German time signal station. The station was operated by the Measurements and Standards Service of the

DDR DDR or ddr may refer to: *ddr, ISO 639-3 code for the Dhudhuroa language *DDr., title for a double doctorate in Germany *DDR, station code for Dadar railway station, Mumbai, India *' (German Democratic Republic), official name of the former East ...

Berlin Berlin ( , ) is the capital and List of cities in Germany by population, largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's List of cities in the European Union by population within ci ...

. The transmitter was located at Nauen Transmitter Station. The station transmitted in the HF band on 4.525 MHz with 5 kW. The transmission consisted of second pulses of 100 ms duration. Minute pulses were 500 ms long. Minute and hour information was transmitted in BCD code by modifying pulses of seconds 41 to 55. The vernerl time signal was transmitted on long wave from East Berlin at 11:55 for 5 minutes

Notes and references

Defunct radio stations in East Germany Mass media in Berlin {{Germany-hist-stub