- Anthorn transmitting station
caption="Anthorn transmitting station shown within
The Anthorn Transmitting Station is located near
Anthorn, Cumbria, Englandand is operated by VT Communications. It has two transmitters: one VLFand one LF.
The characteristic triangular pattern of roads, clearly visible on the mmuknr photo|317950|558150|10|aerial photograph, is a remnant from the
World War IImilitary airfield which was operated by the Royal Navy Air Service as "HMS Nuthatch".
The VLF transmitter is used primarily for transmitting orders to submarines on 19.6 kHz. Its
It is a
NATOfacility, controlled from Northwood Headquartersalong with three other VLF transmitters in Norway, Germany and Italy. [cite web
title=The Future of the British Bomb
month=October | year=2005
LF transmitter: National Physical Laboratory time signal
The National Physical Laboratory (NPL) has installed three
atomic clocks at Anthorn and on 27 February 2007Britain’s national time signal transmissions, retaining their original call sign of MSF, were transferred there on a trial basis, moving formally on 1 April 2007. Monitoring and logging of the clocks and control of the transmissions is by internet link from the NPL offices at Teddington, using comparison with GPSsignals at both locations. Signal monitoring is by radio. To ensure accuracy, dynamic adjustment of the aerial according to local conditions (such as wind distortion) is controlled from computers on site. [cite web
title =MSF the time from NPL
publisher =National Physical Laboratory
accessdate = 2007-03-20 ] The signals, transmitted at 60
kHz, also provide a national frequency standard. The effective radiated power is 15 kW.
The General Lighthouse Authorities for Britain and Ireland have contracted VT Communications to develop eLORAN (enhanced LORAN) radio navigational aid for mariners. The transmitter is at Anthorn. [cite web
title = The GLAs award a 15-year eLoran contract to VT Communications
url = http://www.trinityhouse.co.uk/media_centre/press_releases/press_release.html?id=15001
accessdate = 2008-01-09]
Rugby transmitting station
* Hall, L.L. (1965). Anthorn Very-Low-Frequency Radio Station. "
Post Office Electrical Engineers' Journal", Vol. 58 (July 1965), p.114.
* [http://www.users.globalnet.co.uk/~rwbarnes/defence/longcft.htm Russell W. Barnes' page about the wartime history]
* [http://www.visitcumbria.com/car/anthorn.htm Pictures of Anthorn]
* [http://www.npl.co.uk/time/msf/ Information on MSF relocation to Anthorn]
* [http://www.npl.co.uk/time/msf/msf_anthorn_news_release.pdf Press release about MSF relocation to Anthorn]
Wikimedia Foundation. 2010.
Look at other dictionaries:
Rugby transmitting station — NOTOC The Rugby transmitting station was a large very low frequency (VLF) transmission facility near the town of Rugby, Warwickshire in England, situated just west of the A5 trunk road and in later years junction 18 of the M1 motorway. It came… … Wikipedia
Anthorn — infobox UK place country = England static static image caption= latitude= 54.914689 longitude= 3.257294 official name=Anthorn population = shire district= Allerdale shire county= Cumbria region= North West England constituency westminster=… … Wikipedia
LORAN — (LOng Range Aid to Navigation) is a terrestrial radio navigation system using low frequency radio transmitters that uses multiple transmitters (multilateration) to determine location and/or speed of the receiver. The current version of LORAN in… … Wikipedia
Time from NPL — Map showing the location of the Anthorn VLF transmitter within Cumbria … Wikipedia
Low frequency — or LF refers to Radio Frequencies (RF) in the range of 30 kHz ndash;300 kHz. In Europe, and parts of Northern Africa and of Asia, part of the LF spectrum is used for AM broadcast service. In the western hemisphere, its main use is for aircraft… … Wikipedia
Horloge radio-pilotée — Une horloge radio pilotée est une horloge qui est synchronisée sur un signal horaire émis par une station disposant d une référence de temps, par exemple une horloge atomique. Une horloge radio pilotée peut être synchronisée sur les signaux d un… … Wikipédia en Français