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diamond cantilever vertical radiator. The two standard lattice masts have a wire slung T-antenna suspended between them. The Blaw-Knox radiator is the only one of its kind in
Western Europe. The height of a vertical radiator is related to the
250:
BBC Radio 4's mediumwave services from this transmitter along with all of the other BBC Radio 4 mediumwave transmitters ended on 15 April 2024, following by a retune loop informing listeners to retune to other methods of reception.
217:) of the service transmitted, and for maximum efficiency should be one half of the station's wavelength. Its height was originally 144.8 metres (475 ft), but it was shortened when the station's broadcast frequency was changed.
193:, in case that one should suffer from an enemy attack. It transmitted on 6140 or 6145 kHz, and used the call sign GRW. The shortwave transmitter was taken out of service on 26 May 1946 and was later redeployed at the
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BBC Radio Ulster's service from the transmitter on 1341 kHz ended on
Thursday 6 May 2021 at 0930 UTC, as part of the BBC's programme of switching off their medium wave services around the UK.
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During World War II, a 100 kW shortwave transmitter (Marconi model SWB18) was installed at the station as an alternative to the well-known one at
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to be transmitted to
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BBCEng.info: Comprehensive article on the design and history of the tower
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Entry for
Lisnagarvey transmitting station at The Transmission Gallery
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456:"Date set for the closure of BBC Radio 4 medium wave frequencies"
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Similar masts in Europe can be found nowadays only at
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Lisnagarvey transmitting station (Northern
Ireland)
419:"Ten more stations turn off Medium Wave services"
16:Transmitter tower near Lisburn, Northern Ireland
204:, including two standard lattice masts and one
167:and about one mile from the middle of Lisburn.
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399:List of radio stations in the United Kingdom
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434:BBC Radio 4 ‘AM retune loop’ - 15/04/2024
146:of Magherageery, on the southern edge of
33:Lisnagarvey mast viewed from Sprucefield
598:1936 establishments in Northern Ireland
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588:Transmitter sites in Northern Ireland
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197:at Tebrau, Malaya in January 1951.
541:. You can help Knowledge (XXG) by
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136:Lisnagarvey transmitting station
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263:Analogue radio (AM medium wave)
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195:BBC Far Eastern Relay station
170:The station was built by the
444:– via www.youtube.com.
142:broadcasting located in the
513:Entry at Skyscraperpage.com
200:The station includes three
165:Sprucefield shopping centre
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535:mast or transmitter tower
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593:Towers completed in 1936
502:Lisnagarvey Transmitter
71:99 metres (325 ft)
97:54.489722°N 6.060278°W
533:This article about a
490:14 June 2011 at the
258:Transmitted services
102:54.489722; -6.060278
603:European mast stubs
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176:Regional Programme
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421:. 14 April 2021.
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394:List of towers
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543:expanding it
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376:6 May 2021
340:BBC Radio 4
202:radio masts
100: /
76:Coordinates
68:Mast height
22:Lisnagarvey
582:Categories
507:Structurae
460:RadioToday
405:References
316:Frequency
270:Frequency
215:wavelength
140:mediumwave
85:54°29′23″N
330:720
301:Talksport
236:, and at
211:frequency
206:Blaw-Knox
88:6°03′37″W
488:Archived
466:23 March
440:15 April
383:See also
276:Service
242:Bulgaria
222:Lakihegy
187:Daventry
174:for the
144:townland
238:Vakarel
226:Hungary
191:England
160:J257619
148:Lisburn
118:J257619
309:Former
234:Latvia
180:Arqiva
228:, at
125:Built
539:stub
468:2024
442:2024
368:100
230:Riga
213:(or
134:The
128:1936
504:at
352:10
336:10
332:kHz
319:kW
297:10
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273:kW
189:in
172:BBC
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
