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Navigation, time signals, communication with submarines, landline telephony, wireless heart rate monitors, geophysics: Low frequency: LF: 5: 30–300 kHz 10–1 km: Navigation, time signals, AM longwave broadcasting (Europe and parts of Asia), RFID, amateur radio. Medium frequency: MF: 6: 300–3,000 kHz 1,000–100 m
Standard frequency and time signal-satellite service (short: SFTSS) is, according to Article 1.54 of the International Telecommunication Union's (ITU) Radio Regulations (RR), [2] defined as A radiocommunication service using space stations on earth satellites for the same purposes as those of the standard frequency and time signal service.
In the Americas (defined as International Telecommunication Union (ITU) region 2), the FM broadcast band consists of 101 channels, each 200 kHz wide, in the frequency range from 87.8 to 108.0 MHz, with "center frequencies" running from 87.9 MHz to 107.9 MHz. For most purposes an FM station is associated with its center frequency.
A standard frequency and time signal service is a station that operates on or immediately adjacent to 2.5 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, and 25 MHz, as specified by Article 5 of the ITU Radio Regulations (edition 2012). [2] The US service is provided by radio stations WWV (Colorado) and WWVH (Hawaii).
CHU is the call sign of a shortwave time signal radio station operated by the Institute for National Measurement Standards of the National Research Council. [1] CHU's signal is used for continuous dissemination of official Canadian government time signals, derived from atomic clocks.
US frequency allocations chart, 2016. Frequency allocation (or spectrum allocation) is the part of spectrum management dealing with the designation and regulation of the electromagnetic spectrum into frequency bands, normally done by governments in most countries. [1]
WWVB's Colorado location makes the signal weakest on the U.S. east coast, where urban density also produces considerable interference. In 2009, NIST raised the possibility of adding a second time code transmitter, on the east coast, to improve signal reception there and provide a certain amount of robustness to the overall system should weather or other causes render one transmitter site ...
Amateur radio frequency allocation is ... operation on the even lower frequency of 73 kHz, in the LF time signal ... RAC has a "chart showing the frequencies ...