U.S. NIST Broadcasts:
Longwave radio station WWVB at 60 kHz (binary coded decimal only) at 50 kW;
Shortwave radio station WWV (a male voice, Fort Collins, Colorado, about 100 km north of Denver at approximately 40°40′49″N, 105°02′27″W) at 2.5, 5, 10, 15 and 20 MHz at 2.5 kW to 10 kW. This voice signal is available by telephone at 1-303-499-7111.;
Shortwave radio station WWVH (a female voice, on Kauai near Kekaha, Hawaii, at about 21°59′16″N, 159°45′50″W) at 2.5, 5, 10, and 15 MHz at 2.5 kW to 10 kW;
;
German Broadcasts: A time signal from DCF77 (Mainflingen, a transmitter near Frankfurt at 50 kW at about 50°01′N, 9°00′E) can be received on 77.5 kHz to a range of about 2000 km;
Canadian Broadcasts: The official time can be obtained by tuning to radio station CHU (Ottawa, Ontario) at 3.33, 7.335 and 14.67 MHz, with FSK digital time data sent once per minute at 300 baud;
UK Broadcasts: A time signal from MSF, an atomic clock near Anthorn (which was relocated from Rugby on 2007-04-01) can be received on 60 kHz;
The JJY radio stations in Japan on 40/60 kHz;
The BPM radio station in Xi'an, China at 2.5, 5, 10 and 15 MHz;
Swiss Broadcasts: The legal Swiss time can be picked up from the HBG longwave transmitter in Prangins on 75 kHz. The time code is compatible with that of the German DCF-77 transmitter.;
French Broadcasts: Station TDF transmits timecodes on 162 kHz by phase modulation of the Allouis longwave broadcasting station.;
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