Youshiko Extra Large XXXL Jumbo Radio Controlled Digital Silent Wall Clock

NPL is responsible for operating the national time system and making accurate time available across the UK. This clock keep accurate time by picking up the NPL's radio signal, called MSF, which is transmitted on 60KHz from Cumbria. This transmission carries a date and time code ...NPL is responsible for operating the national time system and making accurate time available across the UK.

This clock keep accurate time by picking up the NPL's radio signal, called MSF, which is transmitted on 60KHz from Cumbria. This transmission carries a date and time code that the radio controlled products use to set themselves to the correct time. The signal is controlled by atomic clocks at the radio station and are adjusted to keep in step with the national time maintained at NPL laboratory in London.