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Topic: AM transmitter Burghead

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	YourArt.com >> Encyclopedia >> Burghead (Site not responding. Last check: 2007-10-19)
		The present town was begun in 1805 on the site of an important Pictish hill fort, which in fact was probably the largest of its period in the whole of northern Great Britain, and hence the most likely "capital" of the Kingdom of Fortriu, and hence all Pictland.
		Opinions differ as to the roots of the ancient festival of the Burning of the Clavie, condemned in the eighteenth century as "an abominable heathenish practice".
		Near Burghead there is a large radio transmitter owned by National Grid Wireless used for Long Wave and Medium Wave broadcasting, the Burghead transmitting station.
	www.yourart.com /research/encyclopedia.cgi?subject=/Burghead (830 words)

	YourArt.com >> Encyclopedia >> Longwave (Site not responding. Last check: 2007-10-19)
		Instead, the D-layer of the ionosphere and the surface of the earth serve as a waveguide directing the signal.
		The earliest radio transmitters were all longwave transmitters, because propagation of radio waves of higher frequency was not yet understood.
		Radio alternator or spark-gap transmitters were commonly used to generate the radio frequency carrier wave.
	www.yourart.com /research/encyclopedia.cgi?subject=/Longwave (783 words)

	Longwave - Biocrawler (Site not responding. Last check: 2007-10-19)
		The earliest radio transmitters, including the Alexanderson alternator, were all longwave transmitters.
		In Europe, North Africa and Asia, longwave radio frequencies between 153 and 279 kHz are used for domestic and international broadcasting.
		One aerial of this kind was used by transmitter Orlunda in Sweden.
	www.biocrawler.com /encyclopedia/Longwave (1026 words)

	UK transmitter sites (Site not responding. Last check: 2007-10-19)
		The Burghead AM transmitter is a facility near Burghead () in Scotland for long- and medium-wave radio transmission established in 1978.
		The BBC transmitter is part of a network transmitting the same frequency, the other transmitters being the Droitwich AM transmitter and the Westerglen AM transmitter.
		The transmitter was erected in 1958 and uses as aerial a 229 metre high guyed steel framework mast with triangular cross section.
	www.shortopedia.com /U/K/UK_transmitter_sites (1389 words)

	Radio Rewind - Radio 1 History - Transmitters
		The transmission wavelength of Radio One was moved from 247m (1214 kHz) to 275 and 285m (1053 and 1089KHz) in November 1978 as part of a plan for BBC AM broadcasting in order to improve national AM reception, and to conform with the 1975 Geneva Conference on radio wavelengths.
		The use of two AM frequencies avoided the problem of interference due to nearby transmitters operating on an identical frequency.
		Radio 1 lost its AM 1053/1089KHz (275/285m) frequencies at 9AM on the 1st July 1994 due to a Government Bill to encourage commercial radio competition on AM.
	www.radiorewind.co.uk /transmitter.htm (847 words)

	LF Radio Data
		These transmitter sites are located at Burghead (50 kW) north Scotland, Westerglen (50 kW) in south Scotland, with the main transmitter located at Droitwich in central England (500 kW).
		The stability of the long wave transmitter carrier is very accurate and can be used as a frequency reference.
		The audio is used to amplitude modulate (AM) the carrier wave, whereas the data signal is transmitted by phase modulation of the carrier wave.
	www.drmradio.co.uk /html/lf_radio_data.html (626 words)

	Burghead transmitting station - Wikipedia, the free encyclopedia
		The Burghead transmitting station is a broadcasting facility near Burghead (grid reference NJ125685) in Scotland for long- and medium-wave radio transmission that started service on 12th October 1936.
		The site is owned by National Grid Wireless and houses a long wave radio transmitter on 198 kHz broadcasting BBC Radio 4 and two medium wave radio transmitters, broadcasting BBC Radio Five 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 at the Droitwich and Westerglen.
	en.wikipedia.org /wiki/Burghead_AM_transmitter (216 words)

	Ross Revenge - Transmitter Room - Continental Electronics (Site not responding. Last check: 2007-10-19)
		These transmitters were available as both medium wave and shortwave variants, with very little difference in circuitry, and many hundreds, if not thousands have been built and shipped around the world since the 1960's.
		I am unsure as to the exact release date of the 315/316/317B, but a good guesstimate would be 1957, a year after RCA launched the first ampliphase the 50G.
		An even later version of the 316, the 316F is generally regarded as being the finest sounding AM transmitter ever built, with exceptionally low distortion and noise levels and excellent phase characteristics.
	www.rossrevenge.co.uk /tx/continental.htm (3452 words)

	Frequency Finder UK - History of radio transmission
		A smaller 5 kW transmitter was opened at Penmon to bring the Welsh Regional Programme to North Wales and Aberdeen was replaced by a 5 kW transmitter at Redmoss.
		To combat this, the long wave transmitter was closed and the medium wave transmitters grouped into three synchronous groups of four on the same frequency.
		Increasing the bandwidth on AM was not an option because of interference to and from foreign stations.
	mysite.wanadoo-members.co.uk /freq_find/trans_hist1.html (2271 words)

	Big L 1395 - Page 26 - UKOnAir.com (Site not responding. Last check: 2007-10-19)
		Yes they are 'daft' suggestions because none of those transmitters cover more than about a quarter of the UK during daytime and away from the coasts you are talking anorak quality not fussy listener standard.
		Any broadcaster wishing to use an overseas transmitter to broadcast to the UK can only have the coverage that is provided by that transmitter and not hope to cover the whole of the UK with it.
		So, the idea of broadcasting on AM from foreign shores may not be ideal, but it is better than nothing in the absence of any other alternative that has reasonable coverage and can be received on portable equipment that the listener already owns.
	www.ukradio.com /forums/showthread.php?p=100434 (1551 words)

	mb21 - ether.net - Transmitter Information (Site not responding. Last check: 2007-10-19)
		Until the mid-70s and the proliferation of independent local stations the vast majority of radio listeners used AM (MF, medium wave) rather than FM (VHF).
		The coverage provided by these transmitters may seem desultory but remember that the areas shown were the limit of night-time fading.
		It will be seen that these frequencies are very similar to those in use by existing wavelengths today, the present arrangements having been adopted after the major frequency re-shuffle of November 1978.
	tx.mb21.co.uk /info/bbc-am/bbc-am.asp (312 words)

	Longwave info here at en.articles-on-parenting.info (Site not responding. Last check: 2007-10-19)
		The earliest radio transmitters were full longwave transmitters, because propagation of radio waves of higher closeness yet understood.
		Radio alternator or spark-gap transmitters were ordinarily used to form the radio closeness carrier wave.
		In Europe, North Africa and Asia, longwave radio frequencies in the cable 148.5 to 283.5 kHz are used for wifely and international broadcasting.
	en.articles-on-parenting.info /Longwave (455 words)

	[No title]
		Supposed to be on at 0400 but I'm guessing that they fired up the transmitter and began relaying their FM outlet.
		I am quite sure that the sudden increase in SW activity with perfect signal quality is a part of that counter-propaganda programme.
		In AM or Synchro mode, of course, you won`t notice, but to a DXer tuning around in SSB it`s quite annoying, and that great audio fidelity served to make the Donald Duckishness more apparent at the more easily tuned even frequency.
	www.worldofradio.com /dxld4043.txt (12127 words)

	Frequency Finder UK - Radio 1 transmission history
		Prior to launch additional Radio 1 transmitters were built for the Midlands; South Wales, Avon & Somerset; Southampton & Portsmouth; the Brighton area; the Norwich area; and Hull, all on 1214 kHz, or 247 metres as radios were calibrated in wavelengths on AM then.
		The transmitters serving the North, Midlands and South East were tripled in power and new high power transmitters introduced for the South West and the North East.
		Four transmitters were then ceremonially switched on through the day: Wrotham for the South East (replacing Crystal Palace), Tacolneston for Norfolk and Suffolk, Sandale for North East Cumbria and South West Scotland and Blaenplywf for Ceredigion and SW Gwynedd.
	mysite.wanadoo-members.co.uk /freq_find/r1_transmission.html (2137 words)

	UK Radio History 1, Marconi, 2LO, BBC and Radio Normandy By Mike Smith
		On 17th February 1935 the BBC moved Midlands regional transmitter from Daventry to Droitwich to form the Midlands 'twin-wave' station, on the same day BBC Belfast was renamed BBC Northern Ireland and changed wavelength from 267 to 307 metres, with improved reception.
		The 150kW Droitwich longwave transmitter was also converted to medium wave operation and together with the other former National Programme transmitters, was synchronised on 1149kHz and broadcast the European Service during the hours of darkness.
		Subsequently the 5XX transmitter at Daventry, the Droitwich transmitter and a new transmitter installed at Brookmans Park were established as a longwave group of transmitters to broadcast the European Service on 200kHz, later joined by a high power transmitter at Ottringham in the East Yorkshire Riding, in February 1943, also using 200kHz.
	www.arar93.dsl.pipex.com /mds975/Content/ukradio.html (4055 words)

	Longwave info here at en.16-port-switching-hub.info (Site not responding. Last check: 2007-10-19)
		The earliest radio transmitters were longwave transmitters, marking propagation of radio waves of higher density yet understood.
		Radio alternator or spark-gap transmitters were regularly used to the radio density carrier wave.
		In Europe, North Africa & Asia, longwave radio frequencies in the bandeau 148.5 to 283.5 kHz are used for submissive & international broadcasting.
	en.16-port-switching-hub.info /Longwave (439 words)

	UK Radio Frequency Bands
		Used to be a constant AM tone with pips and doodle-doo noises, as featured in the song Professionnels by Air (Premiers Symptomes), and could be heard on tuners at 87.5 Changed in March 1998 to bursts of FM data.
		VDL-3 retains AM capability, but also uses 8-phase shift keying, giving 4 time slots within 120ms frames, providing for a mix of digital voice and data.
		Middle Band, to 140.94375 (split -33: 105.01875-107.94375) AM, 12.5kHz channels (6.25kHz offsets) (channel 122 at 139.51875 became J22 by replacing the 1 with a J) Channel 1 at 138.00625 was never used (old 140.96875 STH channel no longer used) Some JFMG in the Channel Islands at 139.55 & 139.575 (base), and simplex at 139.65 141=...
	www.wibble.co.uk /links/ukspectrum/spectrum.html (9302 words)

	Droitwich transmitting station - Wikipedia, the free encyclopedia
		This transmission site is the location of the strongest long-wave transmitter of the British Broadcasting Corporation, which together with the two Scottish longwave transmitters at Burghead and Westerglen forms a network on the same frequency.
		The carrier frequency is controlled by a rubidium atomic frequency standard in the transmitter building, enabling the transmission to be used as an off-air frequency standard.
		The Radio 4 LW signal from Droitwich is by far the strongest in the UK, covering most of England and Wales.
	en.wikipedia.org /wiki/Droitwich_AM_transmitter (397 words)

	DAB Ensembles WorldWide
		This is the key transmitter in the SFN for coverage of the city itself.
		The Direktorenkonferenz der Landesmedienanstalten, the association of the various bodies which are responsible for broadcasting policy in their respective Länder, is also to seek an increase in radiated powers at the transmitters already operating in order to improve indoor reception.
		This antenna is known to have been used succesfully in Frankfurt, for example, where good reception of a neighbouring ensemble was restored despite the presence of a strong, adjacent-channel signal from the local ensemble.
	www.wohnort.demon.co.uk /DAB/archives03.html (10707 words)

	List of masts (via CobWeb/3.1 planetlab2.cs.virginia.edu) (Site not responding. Last check: 2007-10-19)
		Radio masts for VLF, LF and MF often act directly as aerials and are therefore often insulated against ground.
		Electric devices on them are fed via cables running through the coils of a parallel resonance circuit which is switched in parallel to the transmitter output.
		For transmissions in the VHF and UHF range the value can vary depending on the area to be served.
	list-of-masts.kiwiki.homeip.net.cob-web.org:8888 (1149 words)

	Droitwich AM transmitter Information
		The Droitwich AM transmitter is a large broadcasting facility for longwave and mediumwave established in 1934 close to the village of Wychbold, near Droitwich, Worcestershire, England (Grid reference SO929663).
		This transmission site is the location of the strongest longwave transmitter of the British Broadcasting Corporation, which together with the longwave transmitters at Burghead and Westerglen forms a network on the same frequency.
		The station is owned and operated by National Grid Wireless.
	www.bookrags.com /Droitwich_AM_transmitter (345 words)

	Digital Radio Development Bureau - DRDB (Site not responding. Last check: 2007-10-19)
		Digital One, the national commercial DAB multiplex operator, has turned on two new transmitters, boosting coverage for its eight national stations.
		The Mounteagle transmitter covers Inverness and the coastal area from Tain to Burghead and brings Digital One to around 150,000 for the first time.
		The national campaign is designed to boost the profile of DAB and to position Virgin Radio as a leading national DAB station.
	www.drdb.org /nov_2003.php (1401 words)

	RTS: Radio Teleswitch Services: Technical Aspects
		Here, the electricity industry codes are combined with the instructions from other users of the service and sent to the three national networks of transmitters.
		The main transmitter at Droitwich (see also the BBC site), rated at 500kW, can reach most parts of the UK and some parts of continental Europe while the two smaller transmitters located at Westerglen and Burghead cover Scotland and Northern Ireland.
		Messages are encoded onto the Amplitude Modulated (AM) Radio 4 signal using Phase Shift Keying (PSK) techniques.
	www.energynetworks.org /rts/tech_aspects.asp (471 words)

	National Grid Wireless information information - Search.com
		Crown Castle UK was formed from the transmitter network of the BBC, which was privatised in 1997.
		It was a subsidiary of Crown Castle International, but since 31 August 2004 it has been owned by National Grid plc.
		This article about a telecommunications corporation or company is a stub.
	search.com.com /reference/Crown_Castle_UK (199 words)

	Passages Camps - Sculptures Summer 2004
		(Another influence, that I only thought of later, was going to look at the BBC transmitter at Burghead the previous week.
		I achieved the dome but I had not made it sufficiently rigid, so it just flopped about a lot as I tried to turn it over, and it just looked like a failed sweat-lodge.
		Next came Acrobats, which I thought of as a father and son balancing act.
	www.passagescamps.plus.com /sculpt.htm (1884 words)

	The Euro-African Medium Wave Guide (EMWG)
		- BBC Radio Scotland, various (5/100) - 0600-0000 Radio Scotland, 0000-0600 BBC World Service; txs in Redmoss, Burghead, and Westerglen (last 2 with 100 kW)
		- RTM C, Oujda (50) - 0800-0100: transmissions in Arabic and Berber; transmitter is drifting, if on air at all
		- France Bleu, Villebon-sur-Yvette (300) - 24h: broadcasts in AM stereo; "General" radio with popular, adult programmes with daily life related information and entertainment
	www.hermanboel.eu /emwg/online-mw1.htm (8700 words)

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