Clarkestown transmitter
|
Clarkestown transmitter
|
|||
|---|---|---|---|
 |
|||
| Basic data | |||
| Place: | Clarkstown at Summerhill | ||
| County: | Meath | ||
| Province: | Leinster | ||
| Country: | Ireland | ||
| Altitude : | 102 m ASL | ||
| Coordinates: 53 ° 27 ′ 45.5 " N , 6 ° 40 ′ 39.3" W. | |||
| Use: | Broadcasting station | ||
| Accessibility: | Transmission mast not open to the public | ||
| Mast data | |||
| Construction time : | 1989 | ||
| Building material : | steel | ||
| Operating time: | since 1989 | ||
| Total height : | 248 m | ||
| Data on the transmission system | |||
| Last modification (transmitter) : | 2007 | ||
| Waveband : | LW transmitter | ||
| Radio : | LW broadcast | ||
| Position map | |||
|
|||
Transmitter Clarkestown ( Irish Baile Uí Chléirigh ) is a long wave transmitter in County Meath in the Central Irish Plain of the Republic of Ireland , which operates on the frequency 252 kHz with 300 kW transmission power. The transmitter is located approximately 3.5 km east of the village of Summerhill , in a field in Clarkstown on the R156 regional road. A 248-meter-high, ground-insulated, base-fed steel truss mast serves as the transmitting antenna.
history
The transmission system for long-wave broadcasting, built in 1988, served until December 20, 2001 to broadcast the Atlantic 252 program , a cooperation between RTL and Raidió Teilifís Éireann . Today, the RTÉ Radio 1 program is broadcast on the long wave frequency of 252 kHz in amplitude modulation (AM) with a transmission power of 100 kW during the day and 300 kW at night. In 2007, the two original transmitters from Varian Associates were replaced by a single fully transistorized 300 kW TRAM 300L transmitter built by Transradio Sendersysteme Berlin .
On October 27, 2014, the transmitter was supposed to be switched off due to the low number of users, which does not justify the high operating costs. The shutdown was postponed until January 19, 2015, later to 2017 , after protests by the Catholic Churches in Ireland (whose services are broadcast over long wave) and by people in the neighboring United Kingdom , after opening hours are initially to be reduced in 2016. The program is to be distributed over long distances instead via the Internet.
technology
The transmission mast with a height of 248 meters is a guyed steel framework mast with a triangular cross-section, which is isolated from the earth. The original transmitter consisted of two 300 kW Continental transistor transmitters, which were supplied by the Californian electronics company Varian Associates from Dallas , USA. The ground around the mast was lined with copper to improve conductivity.
Picture gallery
Entrance gate to the transmitter
Top of the transmission mast
Top of the transmission mast
Guys to stabilize the mast
Web links
- Clarkestown transmitter. In: Structurae
- Transradio website for the TRAM 300L transmitter
Individual evidence
- ↑ http://www.transradio.de/index.php?option=com_content&view=article&id=99%3Airland2007&catid=1%3Aaktuelle-nachrichten&Itemid=79&lang=en
- ↑ http://www.rte.ie/radio1/static/2014/0821/638554-stay-tuned/
- ↑ RTÉ's longwave service extended until 2017 (accessed on July 11, 2015)
- ↑ Archived copy ( Memento of the original from December 13, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Archived copy ( memento of the original from January 23, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
