Y3S

Y3S was the callsign of an East German time signal station. The station was operated by the Measurements and Standards Service of the DDR [1] in Berlin. The transmitter was located at Nauen Transmitter Station.

The station transmitted in the HF band on 4.525 MHz with 5 kW.[2] 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

Amt für Standardisierung, Messwesen und Warenprüfung, Arbeitsgebiet Zeit- und Frequenznormale, Wallstr. 16, Berlin
Gerd Klawitter (1980). List of Time Signal Stations (9th Edition). p. 29.

Time signal stations
Longwave	BPC BPL BSF DCF77 JJY RBU RJH (Beta) RNS (CHAYKA) RTZ MSF TDF WWVB
Shortwave	BPM CHU EBC HD2IOA HLA JN53DV LOL RWM WWV WWVH (Hawaii, USA) YVTO
VHF/FM/UHF	RDS CT
Satellite	GPS BeiDou Galileo GLONASS IRNSS QZSS
Defunct	ATA BSF (Shortwave) HBG NAA WWVL OMA OLB5 VNG Y3S

Time

Key concepts

Measurement
and standards

Chronometry	UTC UT TAI Unit of time Planck time New Earth Time Second Minute Hour Day Week Month Season Year Decade Century Millennium Tropical year Sidereal year Samvatsara
Measurement systems	6-hour clock (Italian) 6-hour clock (Thai) 12-hour clock 24-hour clock Daylight saving time Decimal Hexadecimal Metric Sidereal Solar Time zone
Calendars	Gregorian Julian Hebrew Islamic Lunar Solar Hijri Mayan Intercalation Leap second Leap year

Clocks

Chronology
History

Religion
Mythology

Philosophy of time

Human experience
and use of time

Time in

Geology	Geological time age chron eon epoch era period Geochronology Geological history of Earth
Physics	Absolute space and time Arrow of time Chronon Coordinate time Imaginary time Planck epoch Planck time Proper time Rate Spacetime Theory of relativity Time dilation gravitational Time domain Time translation symmetry Time reversal symmetry
Other subject areas	Chronological dating Chronobiology Circadian rhythms Dating methodologies in archaeology Time geography

Related topics

Category

Time measurement and standards
Chronometry Orders of magnitude Metrology
International standards	Coordinated Universal Time offset UT ΔT DUT1 International Earth Rotation and Reference Systems Service ISO 31-1 ISO 8601 International Atomic Time 6-hour clock (Italian · Thai) 12-hour clock 24-hour clock Barycentric Coordinate Time Barycentric Dynamical Time Civil time Daylight saving time Geocentric Coordinate Time International Date Line Leap second Solar time Terrestrial Time Time zone 180th meridian New Earth Time
Obsolete standards	Ephemeris time Greenwich Mean Time Prime meridian
Time in physics	Absolute space and time Spacetime Chronon Continuous signal Coordinate time Cosmological decade Discrete time and continuous time Planck time Proper time Theory of relativity Time dilation Gravitational time dilation Time domain Time translation symmetry T-symmetry
Horology	Clock Astrarium Atomic clock Complication History of timekeeping devices Hourglass Marine chronometer Marine sandglass Radio clock Watch stopwatch Water clock Sundial Dialing scales Equation of time History of sundials Sundial markup schema
Calendar	Astronomical Dominical letter Epact Equinox Gregorian Hebrew Hindu Holocene Intercalation Islamic Julian Leap year Lunar Lunisolar Solar Solstice Tropical year Weekday determination Weekday names
Archaeology and geology	Chronological dating Geologic time scale International Commission on Stratigraphy
Astronomical chronology	Galactic year Nuclear timescale Precession Sidereal time
Other units of time	Flick Shake Jiffy Second Minute Moment Hour Day Week Fortnight Month Year Olympiad Lustrum Decade Century Saeculum Millennium
Related topics	Chronology Duration music Mental chronometry Decimal time Metric time System time Time value of money Timekeeper

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gollark: I was talking about <@665664987578236961>'s "the flu is worse" thing.

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