{"id":407,"date":"2008-12-24T09:00:48","date_gmt":"2008-12-24T08:00:48","guid":{"rendered":"https:\/\/www.galsys.co.uk\/news\/?p=407"},"modified":"2008-12-24T09:00:48","modified_gmt":"2008-12-24T08:00:48","slug":"atomic-clock-synchronisation-using-msf","status":"publish","type":"post","link":"https:\/\/www.galsys.co.uk\/news\/atomic-clock-synchronisation-using-msf\/","title":{"rendered":"Atomic Clock Synchronisation using MSF"},"content":{"rendered":"

Accurate time using Atomic Clocks is available across Great Britain and parts of northern Europe using the MSF Atomic Clock time signal<\/a> transmitted from Cumbria, UK; it provides the ability to synchronize the time on computers and other electrical equipment.<\/p>\n

The UK MSF signal is operated by NPL<\/a> – the National Physical Laboratory. MSF has high transmitter power (50,000 watts), a very efficient antenna and an extremely low frequency (60,000 Hz). For comparison, a typical AM radio station broadcasts at a frequency of 1,000,000 Hz. The combination of high power and low frequency gives the radio waves from MSF a lot of bounce, and this single station can therefore cover most of Britain and some of continental Europe.<\/p>\n

The time codes are sent from MSF using one of the simplest systems possible, and at a very low data rate of one bit per second. The 60,000 Hz signal is always transmitted, but every second it is significantly reduced in power for a period of 0.2, 0.5 or 0.8 seconds: \u2022 0.2 seconds of reduced power means a binary zero \u2022 0.5 seconds of reduced power is a binary one. \u2022 0.8 seconds of reduced power is a separator. The time code is sent in BCD (Binary Coded Decimal) and indicates minutes, hours, day of the year and year, along with information about daylight savings time and leap years.<\/p>\n

The time is transmitted using 53 bits and 7 separators, and therefore takes 60 seconds to transmit. A clock or watch can contain an extremely small and relatively simple antenna and receiver to decode the information in the signal and set the clock’s time accurately. All that you have to do is set the time zone, and the atomic clock will display the correct time.<\/p>\n

Dedicated time servers<\/a> that are tuned to receive the MSF time signal are available. These devices connect o a computer network like any other server only these receive the timing signal and distribute it to other machines on the network using NTP <\/a>(Network Time Protocol).<\/p>\n","protected":false},"excerpt":{"rendered":"

Accurate time using Atomic Clocks is available across Great Britain and parts of northern Europe using the MSF Atomic Clock time signal transmitted from Cumbria, UK; it provides the ability to synchronize the time on computers and other electrical equipment. The UK MSF signal is operated by NPL – the National Physical Laboratory. MSF has…<\/p>\n

Continue reading <\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,5,8,9,11],"tags":[16,19,20,207,22,23,208,25,26,27,28,204,29,30,34,35],"class_list":["post-407","post","type-post","status-publish","format-standard","hentry","category-atomic-clocks","category-chronology","category-ntp-configuration","category-ntp-server-2","category-radio","tag-atomic-clock","tag-gps-ntp-server","tag-gps-ntp-time-server","tag-gps-time-server","tag-linux-ntp","tag-linux-time-server","tag-msf","tag-network-time-server","tag-ntp-clock","tag-ntp-gps-server","tag-ntp-gps-time-server","tag-ntp-server-2","tag-ntp-servers","tag-ntp-time-server","tag-windows-ntp-server","tag-windows-server-2008"],"yoast_head":"\nAtomic Clock Synchronisation using MSF - Galleon Systems<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.galsys.co.uk\/news\/atomic-clock-synchronisation-using-msf\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Atomic Clock Synchronisation using MSF - Galleon Systems\" \/>\n<meta property=\"og:description\" content=\"Accurate time using Atomic Clocks is available across Great Britain and parts of northern Europe using the MSF Atomic Clock time signal transmitted from Cumbria, UK; it provides the ability to synchronize the time on computers and other electrical equipment. 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