Stations
WWVB can always be received in Salt Lake City

LF Time & Frequency Standard Stations

WWVB provides a stable frequency reference traceable to the U.S. national standard

Low-Frequency reception is usually best during winter months when atmospheric noise levels are low.

Time & Frequency Standard Station
Freq. Call Power Distance Description
25 kHz Beta Unknown Unknown This station is located in Russia. 25 kHz is below the lowest frequency receivable by the Salt Lake City receiver.
40 kHz JJY 50kW with an antenna efficiency of approx. 25% 5540 Miles

This Ootakadoya-yama LF Standard Time and Frequency Transmission Station (NICT) is located near the summit of Ootakadoya-yama on the border between Tamura City and Kawauchi Village in Fukushima Prefecture, Japan.

  • Elevation: approx. 790 meters (2592 feet)
  • Latitude: 3722'21" North
  • Longitude: 14050'56" East

The total area occupied by the station is approximately 88,668 square meters. It uses an umbrella antenna extending 250 meters (820 feet) above ground. The transmission mode is A1B.

Operation began in June of 1999. It is on the air continuously except when shutdown for maintenance, inspection, or to avoid damage during lightning storms.

This station cannot be received by the Salt Lake City receiver.
50 kHz OMA Unknown 4830 Miles This station is located in Prague, Czech Republic and cannot be received by the Salt Lake City receiver.
50 kHz RTZ Unknown 4930 Miles This station is located in Irkutsk, Russia and cannot be received by the Salt Lake City receiver.
60 kHz WWVB 50 KW ERP 358 Miles Broadcasts time and frequency signals from a location near Fort Collins, Colorado. The carrier frequency provides a stable frequency reference traceable to the U.S. national standard. There are no voice announcements, but a time code is synchronized with the 60 kHz carrier and is broadcast continuously at a rate of 1 bit per second using pulse width modulation. WWVB identifies itself by advancing its carrier phase 45° at 10 minutes after the hour and returning to normal phase at 15 minutes after the hour. (Select CW Receive Mode)
60 kHz JJY 50kW with an antenna efficiency of approx. 45% Unknown

Hagane-yama LF Standard Time and Frequency Transmission Station (NICT) is located near the summit of Hagene-yama on the border between Saga City in Saga Prefecture and Itoshima City in Fukuoka Prefecture, Japan.

  • Elevation: approx. 900 meters (2953 feet)
  • Latitude: 3327'56" North
  • Longitude: 13010'32" East

The total area occupied by the station is approximately 115,803 square meters. It uses an umbrella antenna extending 200 meters (656 feet) above ground. The transmission mode is A1B.

Operation began in October of 2001. It is on the air continuously except when shutdown for maintenance, inspection, or to avoid damage during lightning storms.

This station cannot be received by the Salt Lake City receiver.
66.66 kHz BBU Unknown 4550 Miles This station is located in Moscow, Russia and cannot be received by the Salt Lake City receiver.
68.5 kHz BPC Unknown Unknown This station is located in China and cannot be received by the Salt Lake City receiver.
75 kHz HBG 20KW 4990 Miles

This station is a time transfer service of the Swiss Federal Office of Metrology (METAS) and transmits from Prangins, Switzerland.

  • Latitude: 46.4083555 North
  • Longitude: 6.2527694 East

This station cannot be received by the Salt Lake City receiver. Service is scheduled to be terminated in 2011.
77.5 kHz DCF77 50 KW ERP 4690 Miles This station is located in Frankfurt, Germany and cannot be received by the Salt Lake City receiver.
100 kHz BPL Unknown Unknown This station is located in China and cannot be received by the Salt Lake City receiver.

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