If you have reception problems, first check whether the signal has been turned off for maintenance at our MSF Outages page. These include attenuation of the signal due to location of the antenna inside a building or close to power lines or other large metal structures, and background interference which may be from a local source such as an electric motor, fluorescent tube, CRT monitor or TV. This level should be sufficient to allow the time and date code to be received without difficulty, and in all areas of the UK radio-controlled clocks have been found to synchronise correctly to the signal.ĭifficulties receiving the MSF radio signal are generally due to a combination of factors. Home / Radio Controlled Clocks Radio Controlled Clocks Showing all 2 results Althorp Table Clock 120.00 Add to bag Meridian Wall Clock 80.00 Add to bag. The MSF radio signal provides a signal strength in excess of 100 microvolts per metre at a distance of 1000 km. The MSF radio signal is transmitted from Anthorn Radio Station in Cumbria by Babcock (formerly VT Communications), under contract to NPL. The signal operates on a frequency of 60 kHz and carries a time and date code that can be received and decoded by a wide range of readily available radio-controlled clocks. Externally, pylons, scaffolding or overhead power cables can also screen the signal A steel-framed or reinforced concrete building, or large metal objects such as metallic window frames, will reduce the signal inside. Objects such as televisions, electric motors and fluorescent lights can interfere with the signal. It works by synchronising with a radio transmitter connected to an atomic clock in Anthorn. Try moving your clock to a different location. A radio controlled clock will ensure youre never late again.Some clocks have a signal strength indication that helps in finding the best reception Most radio-controlled clocks have an internal antenna that picks up the signal most effectively when it is facing directly towards or away from Anthorn. It can take quite a few minutes for the clock to pick up the MSF radio signal, so be patient Change the current battery for a fresh one and reset your clock. Check that the power supply is in full working order.If this is not done, the clock may well run an hour fast or an hour slow (If the clock's manual indicates a different procedure to this, follow that instead) If the clock uses both mains power and a battery, remember to switch on the mains power and allow the clock to set before inserting the battery.There may be a set procedure which if not followed, will result in the radio controlled clock not working Consult the manual for the clock before turning it on.It is available 24 hours a day across the whole of the UK and beyond.Īssuming that the signal is still on, the following suggestions, in order of increasing difficulty, may help to improve reception of the MSF radio signal: Edwin Lascelles, 1st Baron Harewood (17131795), British landowner and politician, built Harewood House. The MSF radio signal is a dedicated time broadcast that provides an accurate and reliable source of UK civil time, based on the NPL time scale UTC (NPL). Radio waves at these low frequencies use the earth and the ionosphere as a wave-guide and follow the curvature of the earth for long distances.What can you do to ensure you receive the correct time? This atomic clock regulates the WWVB radio transmitter located in Fort Collins, Colorado, where the exact time signal is continuously broadcast throughout the United States at 60 kHz to take advantage of stable long wave radio paths found in that frequency range. These physicists have created an international standard, measuring a second as 9,192,631,770 vibrations of a Cesium 133 atom in a vacuum. A team of atomic physicists continually measures every second of every day to an accuracy of ten billionths of a second per day. Today, time is precisely measured in the United States by the most accurate clock in North America, the Atomic Clock of the US National Institute of Standards and Technology, Time and Frequency Division in Boulder, Colorado. Since the beginning of time, man has been fascinated with the measurement of time and has devised more accurate machines to trap and measure time. And nothing keeps track of time more precisely and trouble free than our radio controlled clocks.
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