Time broadcasters

This page documents the dozens of government-run broadcasters of time-related information. The map shows the transmitting locations (the antenna and transmitter) when known.

ALS162 - France aka: TDF
Allouis, France
Frequency (MHz): 0.162
Wikipedia: ALS162 time signal
Link: Audio
Link: Photo
previously known as TDF.
ATA - IndiaNew Delhi, India
Frequency (MHz): 5, 10, 15
Link: The Story of the Indian ChronoHertz Station ATA
Link: Audio
The short-wave transmitters were shut down around the year 2000. Time signals are via satellite now.
BPC - ChinaShangqiu, Henan Province, China
Frequency (MHz): 0.0685
Wikipedia: BPC (time signal)
68.5 kHz
BPL - ChinaPucheng County, Shaanxi, Weinan, Shaanxi, China
Frequency (MHz): 0.1
Wikipedia: BPL (time service)
BPM - ChinaPucheng County, China
Frequency (MHz): 2.5, 5, 10, 15
Wikipedia: BPM (time service)
Link: Audio
BSF - TaiwanTaoyuan City, Guishan District, Taiwan
Frequency (MHz): 0.0775, 5, 15
Wikipedia: BSF (time service)
Link: Audio
CHU - CanadaNepean, Ottawa, ON, Canada
Frequency (MHz): 3.33, 7.85, 14.57
Wikipedia: CHU (radio station)
Link: NRC
Link: Audio
CMCB Radio Reloj (Radio Clock) - CubaSanta Clara, Cuba
Frequency (MHz): 0.570
The map marker is approximate
DCF77 - GermanyMainhausen, Germany
Frequency (MHz): 0.0775
Wikipedia: DCF77
Link: DCF77
Link: Audio
77.5 kHz
EBC - SpainSan Fernando, Spain
Frequency (MHz): 4.996, 15.006
Link: Audio
The audio is a morse code "CQ" from EBC
HBG - SwitzerlandPrangins, Switzerland
Frequency (MHz): 0.075
Wikipedia: 46.408356, 6.252769
Ceased operation: January 1, 2012
HD2IOA - EcuadorGuayaquil, Ecuador
Frequency (MHz): 3.81, 7.6
Wikipedia: HD2IOA
The map marker is approximate.
HLA - South KoreaDaejeon, South Korea
Frequency (MHz): 5
Wikipedia: HLA (radio station)
IAM - ItalyRome, Italy
Frequency (MHz): 5
Link: Audio
The location appears to be farmland.
IBF - ItalyTurin, Italy
Frequency (MHz): 5
Link: Audio
JJY - JapanTamura, Fukushima, Japan
Frequency (MHz): 0.040
Wikipedia: JJY
Link: Audio
40 kHz
JJY - JapanItoshima, Fukuoka, Japan
Frequency (MHz): 0.060
Wikipedia: JJY
Link: Audio
60 kHz
JN53DV - ItalyMassarosa, Province of Lucca, Italy
Frequency (MHz): 10, 15
Wikipedia: JN53DV
LOL - ArgentinaBuenos Aires, Argentina
Frequency (MHz): 5, 10. 15
Link: PDF
Link: LOL Observatorio Naval Time Signal
This may no longer be operating. It was operating as of 2013.
MIKES - FinlandOtaniemi, Finland
Frequency (MHz): 25
Link: 25 MHz standard frequency and time transmitter of MIKES
MSF - UKWigton, United Kingdom, UK
Frequency (MHz): 0.060
Wikipedia: Time from NPL
NTSC - ChinaLiangyuan District, Shangqiu, Henan, China
Link: 70th Anniversary of Beiing Time
marker is approximate
Norddeich Radio - GermanyNorden, Germany
Frequency (MHz): 0.15
Wikipedia: Norddeich radio station
It was used for time signals in the early 1900s, but also for other purposes.
OMA - CzechiaČeský Brod, Czechia
Frequency (MHz): 0.050
Wikipedia: OMA (time signal)
50 kHz. Shutdown in 1995.
RAB99 - RussiaNikolaevka, Jewish Autonomous Oblast, Russia
Frequency (MHz): 0.0205, 0.023, 0.025, 0.0251, 0.0255
Wikipedia: Beta (time signal)
RBU - RussiaElektrougli, Moscow Oblast, Russia
Wikipedia: RBU (radio station)
Location of RBU before 2008
RBU - RussiaPenkino, Moscow Oblast, Russia
Frequency (MHz): 0.0666
Wikipedia: RBU (radio station)
RID - RussiaMeget, Irkutsk Oblast, Russia
Frequency (MHz): 5.004, 10.004, 15.004
Link: station RID
This may be off the air
RJH63 - RussiaKrasnyi Vostok, Krasnodar Krai, Russia
Frequency (MHz): 0.0205, 0.023, 0.025, 0.0251, 0.0255
Wikipedia: Beta (time signal)
Link: Audio
RJH69 - BelarusDolgoe, Belarus
Frequency (MHz): 0.0205, 0.023, 0.025, 0.0251, 0.0255
Wikipedia: Beta (time signal)
Link: Audio
RJH77 - RussiaRembuyevo, Arkhangelsk Oblast, Russia
Frequency (MHz): 0.0205, 0.023, 0.025, 0.0251, 0.0255
Wikipedia: Beta (time signal)
Link: Audio
RJH86 - Kyrgyzstan aka: RJH66
Panfilov District, Kyrgyzstan
Frequency (MHz): 0.0205, 0.023, 0.025, 0.0251, 0.0255
Wikipedia: Beta (time signal)
Link: Audio
On the border with Kazakhstan
RJH90 - RussiaDruzhnyi, Nizhny Novgorod Oblast, Russia
Frequency (MHz): 0.0205, 0.023, 0.025, 0.0251, 0.0255
Wikipedia: Beta (time signal)
RTZ - RussiaOdinsk, Irkutsk Oblast, Russia
Frequency (MHz): 0.050
Wikipedia: RTZ
Link: station RTZ
Link: Audio
50 kHz
RWM - RussiaElektrougli, Moscow Oblast, Russia
Frequency (MHz): 4.996, 9.996. 14.996
Wikipedia: RWM
Link: station RID
Link: Audio
VNG - AustraliaLynbrook, Victoria, Australia
Frequency (MHz): 4.5, 7.5, 12
Location of VNF before 1988
VNG - AustraliaShanes Park, New South Wales, Australia
Frequency (MHz): 2.5, 5, 8.638, 12.984, 16
Wikipedia: Radio VNG
Link: QSL cards
WWV - USWellington, Colorado, US
Wikipedia: WWV_(radio_station)
Link: Audio
WWVB - USWellington, Colorado, US
Frequency (MHz): 0.06
Wikipedia: WWVB
Link: Audio
WWVH - USKekaha, Hawaii, US
Frequency (MHz): 2.5, 5, 10. 15
Wikipedia: WWVH
Link: Audio
Y3S - GermanyNauen, Germany
Frequency (MHz): 4.626
Wikipedia: Y3S
Link: Audio
YVTO - VenezuelaCaracas, Venezuela
Frequency (MHz): 5
Wikipedia: YVTO
Link: YVTO: Astronomical and Meteorological Observatory, Caracas, Venezuela
ZUO - South Africa aka: Republic Observatory
Johannesburg, South Africa
Frequency (MHz): 2.5, 5
Active: 1903-1971
Wikipedia: Union Observatory
Link: A Local Frequency Standard
The U.S. Military
See other maps and lists from ALC

Sources

The Lost Hilltop Home of the National Bureau of Standards

NIST Time and Frequency Radio Stations WWV, WWVH, and WWVB

NIST Radio Station WWV Celebrates a Century of Service

Special Publication 236, various editions, NDS Frequency and Time Broadcast Services

NIST: A Century of WWV

NIST Special Publication 432, 2002 Edition

Important Radio Station, WWV, Part of Greenbelt’s History

NIST Radio Station WWV Celebrates a Century of Service