North Hessary Tor transmitting station

North Hessary Tor
North Hessary Tor Caradon Hill
Mast height	196 metres (643 ft)
Coordinates	50°33′01″N 4°00′30″W / 50.5503°N 4.0083°W / 50.5503; -4.0083Coordinates: 50°33′01″N 4°00′30″W / 50.5503°N 4.0083°W / 50.5503; -4.0083
Grid reference	SX578742
Built	1955
Relay of	Caradon Hill
BBC region	BBC South West
ITV region	ITV Westcountry

Mast with worker at base

Situated on the summit of North Hessary Tor in Devon, England is an FM radio and television transmitter which uses as aerial a 196 metres (643 ft) high guyed mast. It was built by the BBC in 1955 when a transmitter was needed to introduce 405 line television into Devon. It now carries a small UHF TV transmitter which serves Princetown and Dartmoor. FM radio transmissions began in 1956 and cover most of Devon and eastern parts of Cornwall. It is owned and operated by Arqiva.

Mast and base station

Services listed by frequency

Analogue radio (FM VHF)

Frequency	kW	Service
88.1 MHz	160	BBC Radio 2
90.3 MHz	160	BBC Radio 3
92.5 MHz	160	BBC Radio 4
97.7 MHz	160	BBC Radio 1
100.0 MHz	160	Classic FM
103.4 MHz	15	BBC Radio Devon

In all BBC publications the national FM ERPs for North Hessary Tor are listed as 160 kW (Mixed Polarisation): Classic FM list their ERP as 80 kW (Horizontal) and 80 kW (Vertical) for North Hessary Tor which is the same as the BBC e.g. 160 kW (Mixed Polarisation) ERP.

Digital radio (DAB)

Frequency	Block	kW	Operator
225.648 MHz	12B	3.2	BBC National DAB

Analogue television

17 December 1954 - 3 January 1985

Frequency	VHF	kW	Service
51.75 MHz	2	15	BBC1

Until 12 August 2009

Frequency	UHF	kW	Service
743.25 MHz	55	0.012	BBC One
775.25 MHz	59	0.012	ITV1
799.25 MHz	62	0.012	BBC Two
823.25 MHz	65	0.012	Channel 4

Analogue and digital television

12 August 2009 - 9 September 2009

Frequency	UHF	kW	Service	System
743.25 MHz	55	0.012	BBC One	PAL System I
775.25 MHz	59	0.012	ITV1	PAL System I
801.833 MHz	62	0.0025	BBC A	DVB-T
823.25 MHz	65	0.012	Channel 4	PAL System I

Digital television

9 September 2009 - June 2013

Frequency	UHF	kW	Operator	System
746.000 MHz	55	0.0025	BBC B	DVB-T2
778.000 MHz	59	0.0025	Digital 3&4	DVB-T
801.833 MHz	62-	0.0025	BBC A	DVB-T

From June 2013

In June 2013, BBC A moved from UHF 62- to UHF 50, to allow for the clearance of the 800 MHz band for 4G LTE mobile services.

Frequency	UHF	kW	Operator	System
706.000 MHz	50	0.0025	BBC A	DVB-T
746.000 MHz	55	0.0025	BBC B	DVB-T2
778.000 MHz	59	0.0025	Digital 3&4	DVB-T

References

External links

Television transmitter and major relay sites in the United Kingdom

England

East	Mendlesham Sandy Heath Sudbury Tacolneston

East Midlands	Belmont Chesterfield Waltham

Greater London	Alexandra Palace Croydon Crystal Palace

North East	Berwick-upon-Tweed Burnhope Chatton Pontop Pike

North West	Caldbeck Sandale Storeton West Kirby Winter Hill

South East	Bluebell Hill Chillerton Down Dover Frémont Point (Channel Islands) Hannington Heathfield Membury Midhurst Oxford Rowridge Whitehawk Hill

South West	Beacon Hill Caradon Hill Huntshaw Cross Mendip North Hessary Tor Redruth Stockland Hill Washford

West Midlands	Lichfield Ridge Hill Sutton Coldfield The Wrekin

Yorkshire and the Humber	Bilsdale Emley Moor Halifax Holme Moss Oliver's Mount Sheffield

Scotland

Wales

Northern Ireland

Italics denotes a transmitter no longer used for transmitting television signals.

North Hessary Tor VHF 405-line Transmitter Group

Transmitter stations	Bude Okehampton Sidmouth

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