North Hessary Tor transmitting station
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.
![](../I/m/North_hessary_building.jpg)
Mast and base station
![]() | |
![]() ![]() North Hessary Tor ![]() Caradon Hill | |
Mast height | 196 metres (643 ft) |
---|---|
Coordinates | 50°33′01″N 4°00′30″W |
Grid reference | SX578742 |
Built | 1955 |
Relay of | Caradon Hill |
BBC region | BBC South West |
ITV region | ITV Westcountry |
![](../I/m/North_hessary_mast.jpg)
Mast with worker at base
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
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 |
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See also
- List of masts
- List of tallest buildings and structures in Great Britain
External links
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