Droitwich Spa is an historic spa town in the Wychavon district in northern Worcestershire, England, on the River Salwarpe. It is located approximately 22 miles (35 km) south-west of Birmingham and 7 miles (11 km) north-east of Worcester.
Low frequency (LF) is the ITU designation for radio frequencies (RF) in the range of 30–300 kHz. Since its wavelengths range from 10–1 km, respectively, it is also known as the kilometre band or kilometre waves.
A radio clock or radio-controlled clock (RCC), and often colloquially referred to as an "atomic clock", is a type of quartz clock or watch that is automatically synchronized to a time code transmitted by a radio transmitter connected to a time standard such as an atomic clock. Such a clock may be synchronized to the time sent by a single transmitter, such as many national or regional time transmitters, or may use the multiple transmitters used by satellite navigation systems such as Global Positioning System. Such systems may be used to automatically set clocks or for any purpose where accurate time is needed. Radio clocks may include any feature available for a clock, such as alarm function, display of ambient temperature and humidity, broadcast radio reception, etc.
In radio, longwave, long wave or long-wave, and commonly abbreviated LW, refers to parts of the radio spectrum with wavelengths longer than what was originally called the medium-wave broadcasting band. The term is historic, dating from the early 20th century, when the radio spectrum was considered to consist of longwave (LW), medium-wave (MW), and short-wave (SW) radio bands. Most modern radio systems and devices use wavelengths which would then have been considered 'ultra-short'.
The Warsaw Radio Mast was a radio mast located near Gąbin, Poland, and was the world's tallest structure at 2,120 ft from 1974 until its collapse on 8 August 1991. The mast was designed for extreme height in order to broadcast Communist propaganda around the world, including to the remotest areas such as Antarctica. As of 2023, it was the third-tallest manmade structure ever built, after the Burj Khalifa tower in the United Arab Emirates in 2009, and Merdeka 118 tower in Malaysia in 2022.
RTÉ Radio 1 is an Irish national radio station owned and operated by RTÉ and is the direct descendant of Dublin radio station 2RN, which began broadcasting on a regular basis on 1 January 1926.
Atlantic 252 was an Irish longwave radio station broadcasting to Ireland and the United Kingdom on 252 kHz from its 1988 purpose-built transmission site at Clarkstown radio transmitter, County Meath, which provided service to Atlantic 252 from 1989 until 2002. The station's studios were located 12 km (7 mi) away in Mornington House, Summerhill Road, Trim, County Meath. Atlantic 252 also had sales offices and studios at 74 Newman Street in London.
The longwave transmitter Raszyn is a longwave broadcasting transmitter near Raszyn, Poland. It was built in 1931 and rebuilt in 1949. The designer of the mast is unknown. It has been claimed that the rebuilt tower consists of sections from the radio mast of former Deutschlandsender Herzberg/Elster; however, there is no proof of this theory. The mast of the Raszyn longwave transmitter was, at inauguration, the second-tallest man-made structure on earth and until 1962, with a height of 335 metres, the tallest structure in Europe. The tower's height is 1,099 feet.
The Roumoules transmitter is the main broadcasting facility for longwave and mediumwave broadcasting of Radio Monte Carlo near Roumoules, France and is owned by Monaco Media Diffusion. The 1000 and 2000kW transmitters installed are among the most powerful in the world and can be received well at nighttime throughout Europe.
The Burghead transmitting station is a broadcasting facility near Burghead in Scotland for long wave and medium wave radio transmission that started service on 12 October 1936. The site is owned by Arqiva and houses a long wave radio transmitter on 198 kHz broadcasting BBC Radio 4 and two medium wave radio transmitters, broadcasting BBC Radio 5 Live on 693 kHz and BBC Radio Scotland on 810 kHz. The long wave transmitter is part of a network transmitting on the same frequency, the other transmitters being Droitwich and Westerglen.
The Westerglen transmitting station is a facility for longwave and mediumwave broadcasting established in 1932 at Westerglen Farm, 2 miles southwest of Falkirk, Stirlingshire, Scotland.
Kalundborg Radio was a major transmission facility for long- and mediumwave at the harbour of Kalundborg in Denmark. Longwave broadcasts on 243 kHz began on 27 August 1927 and ceased on 31 December 2023. Mediumwave broadcasts on 1062 kHz began on 1 October 1951 and ceased in June 2011.
Grimeton Radio Station in southern Sweden, close to Varberg in Halland, is an early longwave transatlantic wireless telegraphy station built in 1922–1924, that has been preserved as a historical site. From the 1920s through the 1940s it was used to transmit telegram traffic by Morse code to North America and other countries, and during World War II was Sweden's only telecommunication link with the rest of the world. It is the only remaining example of an early pre-electronic radio transmitter technology called an Alexanderson alternator. It was added to the UNESCO World Heritage List in 2004, with the statement: "Grimeton Radio Station, Varberg is an exceptionally well preserved example of a type of telecommunication centre, representing the technological achievements by the early 1920s, as well as documenting the further development over some three decades." The radio station is also an anchor site for the European Route of Industrial Heritage. The transmitter is still in operational condition, and each year on a day called Alexanderson Day is started up and transmits brief Morse code test transmissions, which can be received all over Europe.
Borough Hill is a hill to the east of the town of Daventry in the English county of Northamptonshire. It is over 200 metres (660 ft) above sea level and dominates the surrounding area.
Deutschlandfunk is a public-broadcasting radio station in Germany, concentrating on news and current affairs. It is one of the four national radio channels produced by Deutschlandradio.
A radio teleswitch is a device used in the United Kingdom primarily to allow electricity suppliers to switch large numbers of electricity meters between different tariff rates, by broadcasting an embedded signal in broadcast radio signals. Radio teleswitches are also used to switch on/off consumer appliances to make use of cheaper differential tariffs such as Economy 7.
The BBC National Programme was a radio service which was on the air from 9 March 1930 – replacing the earlier BBC's experimental station 5XX – until 1 September 1939 when it was subsumed into the BBC Home Service, two days before the outbreak of World War II.
Rás 1 is an Icelandic radio station belonging to and operated by Ríkisútvarpið (RÚV), Iceland's national public service broadcaster. Broadcast throughout Iceland on FM, via DTV radio (DVB-T2) and is also streamed on the Internet. It is currently among the country's most listened-to radio stations.
The Daventry transmitting station was a major broadcasting facility located on Borough Hill on the outskirts of Daventry, Northamptonshire. It operated from 1925 until 1992, carrying long-wave, medium-wave, and short-wave broadcasts at different times in its history. In its heyday the site had more than 40 masts and towers on an antenna field extending over hundreds of acres. Since 1992, only DAB services have been broadcast from the site using a single mast. All other antennas have been demolished.
