thebigtower


huntshaw cross

 


THE HUNTSHAW CROSS TRANSMITTER is the North Devon area UHF main station from where local FM and national DAB radio services are also provided.

It is one of five main UHF transmitters located across the south-west of England, the four other main stations being sited at Beacon Hill (South Devon), Caradon Hill (East Cornwall), Redruth (West Cornwall) and Stockland Hill (East Devon).

TRANSMISSION STRUCTURE

The mast at Huntshaw Cross is a 152-metre (500-ft) triangular cross-section lattice structure, supported by twelve stay-lines which attach in pairs to six ground anchoring blocks.  The current main UHF antenna adds a further 12 metres (39.4-ft) at the top of the structure, bringing the total height to 164 metres (538-ft).


Aerials>  Supersize Images>  UHF Coverage Map


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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DIGITAL SWITCHOVER

Re-engineering for Digital Switchover took place at Huntshaw Cross from 2007 to 2009 and in addition to ground works typically saw the replacement of the main UHF antenna at the top of the structure and the installation of a cylindrical reserve UHF aerial at a slightly lower position. (See Aerials for images of the current layout).

Following the successful switchover's at Beacon Hill and Stockland Hill, Huntshaw Cross and it's dependent relays became the third transmitter group in the south-west region to complete the process, which as usual took place in two stages as follows -

Stage 1 (DSO1) - 1 July 2009

BBC Two analogue on Channel 62 ceased broadcasting permanently and PSB1 multiplex (BBCA) launched on Channel 62

Stage 2 (DSO2) - 29 July 2009

All other analogue services ceased broadcasting permanently and high powered digital multiplexes launched.


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Aerials

 

UHF Coverage Map

 

 

 

 

 

 

 

 

 

 


STATION HISTORY

Huntshaw Cross was opened by the Independent Television Authority (ITA) on 22 April 1968, initially as the third and last component of the ITV 405-line VHF Band III transmitter network in the south-west of England.

In this capacity, the station complemented the coverage of the two existing stations at Caradon Hill and Stockland Hill across North Devon, providing a vital improvement in ITV reception along the coastal stretch between Westward Ho and Ilfracombe and in-land around Barnstaple and Bideford.

Transmitting on VHF Channel 11, the station operated as a relay of Stockland Hill. with an Effective Radiated Power (e.r.p) of just 500 watts required to re-broadcast the signal received from the parent station.

As with other significant late entrants into the ITV 405-line network, future UHF transmission was a key consideration in the selection of site location and station facilities, hence the provision from the outset of a 500-ft (152 metre) mast capable of supporting the station's future primary role of main UHF transmitter for North Devon.

Of the eventual five UHF main stations in the south-west region, Huntshaw Cross was the last to roll-out the three UHF services, completing in November 1973.


Aerials>  Supersize Images>  UHF Coverage Map



STATION INFORMATION


Location:

Huntshaw Cross, Great Torrington, North Devon

Grid Reference:

SS527220

Landlord:

Arqiva (Legacy: ITA/IBA/NTL)

Ground Height:

192m

BBC Region:

South-West

Mast Height:

164m

ITV Region:

South-West

Aerial Height: (*)

360m

 

UHF Tx Number:

13800

(*) Average UHF aerial height above sea level (a.o.d)

 


  CURRENT TRANSMISSIONS

 

 

 

Digital Television

 

Analogue Radio (FM)

 

 

 

 

 

 

 

 

 

Service

: Ch/Polarisation/e.r.p

 

 

 Service:

(MHz)

(e.r.p)

PSB1

: 50 / H / 20kW 

 

 

BBC Radio Devon:

94.8

675W

PSB2

: 59 / H / 20kW 

 

 

Heart FM North Devon:

96.2

2.5kW

PSB3

: 55 / H / 20kW 

 

 

 

 

 

COM1

: 48 / H / 10kW 

 

 

Digital Radio (DAB)

COM2

: 52 / H / 10kW

 

 

 

COM3

: 56 / H  /10kW

 

 

 

BBC National (Block 12B)

 

 

Digital One (Block 11D)

 

 

 North Devon (Block 10C)

 

 

 

CEASED TRANSMISSIONS

(Shutdown completed 29 July 2009)

Analogue Television 

 

 

 

 

 

 

 

 

 

 

 

 

 

Service

  Ch/Polar/e.r.p

 

 

 

 

Service

 Ch/Polar/e.r.p

BBC1

: 55 / H / 100kW

 

 

 

 

Mux1

: 54 / H / 4.0kW

BBC2

: 62 / H / 100kW  

 

 

 

 

Mux2

: 58 / H / 4.0kW

ITV1

: 59 / H / 100kW 

 

 

 

 

MuxA

: 61 / H / 4.0kW

Ch4

: 65 / H / 100kW

 

 

 

 

MuxB

: 64 / H / 4.0kW

Five

: 67 / H / 2kW

 

 

 

 

MuxC

: 53 / H / 4.0kW

 

 

 

 

 

(+)

MuxC

 : 51 / H / .08kW

 

 

 

 

 

 

MuxD

: 57 / H / 4.0kW

 

 

 

 

 

 

(+)

MuxD

 : 47 / H / .08kW

 

 

 

 

 

 

 

 

 

(+) = Huntshaw Cross B

 

 

 

 

 

 

 

 

 


Beacon Hill  Caradon Hill  North Hessary Tor  Redruth  Stockland Hill

 

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