thebigtower


moel-y-parc

 


THE MOEL-Y-PARC TRANSMITTER is the UHF main station that serves the north-eastern sector of Wales.  It is located on a remote and highly elevated site in the Clwydian Mountain Range.  The station is also the main Arqiva Service Centre base in North Wales.

 

UHF SERVICE AREA AND OVERLAP

The principal service area of this transmitter covers a radius of between just 15-20 miles.  Locations within this area include Flint, Holywell, Mold, Denbigh and Wrexham, as well as Prestatyn, Rhyl and Colwyn Bay on the North Wales coastline.

However, due mainly to the high elevation of the transmission site, signals from this station overlap significantly towards the east and north-east into the principal service area of the Winter Hill transmitter, producing an actual transmission radius of 50-60 miles in these directions and reaching a considerably greater number of viewers than present within the area it is intended to serve. 

This duplication of coverage is reciprocated by the Winter Hill transmitter which provides a viable alternative to viewers in lower-lying parts of North Wales where reception of Moel-y-Parc is difficult.  (Click here for UHF Coverage Map)

 

STATION NAME PRONUNCIATION

Moyl-a-Parc


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

400x560 pixel images

 

Supersize Images

 

510x710 pixel images

 

 

 

 

 

 

 

 

 

 

 


Aerials (1)>  Aerials (2)>  Transmission Site>  Supersize Images>  UHF Coverage Maps


DIGITAL SWITCHOVER

Moel-y-Parc has completed the Digital Switchover process, the two stages successfully implemented as follows -

Stage 1 (DSO1) 28 October 2009

BBC Two analogue (Channel 45) switched off and the first BBC multiplex - BBCA (PSB1) launched.

 

Stage 2 (DSO2) 25 November 2009

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


 

 

 

 

 

 

 

 

 

 

Aerials (1)

 

Aerials (2) DSO

 

Transmission Site

 

UHF Coverage Map

 

 

 

 

 

 

 


TELEVISION HISTORY

Moel-y-Parc was constructed by the Independent Television Authority (ITA) as the third and last of the main ITV 405-line Band III transmitter sites located in Wales.

More specifically, it was the last significant component in the provision of a dedicated ITV service for the predominantly rural and sparsely populated territory of West and North Wales, the largest concentration of the Welsh population being located in South Wales as served by the St Hilary (Cardiff) transmitter since January 1958.

Two transmitters preceded Moel-y-Parc in the establishment of this new service.  The Presely main station in Pembrokeshire was the first to commence transmission, providing coverage across Pembrokeshire, Carmarthenshire and northwards along Cardigan Bay.  The second station, a Presely-dependent relay, was sited at Arfon and carried the service to the areas of the north-west coast that Presely was unable to reach, including the Isle of Anglesey.

Presely and Arfon came into service on 14 September 1962 and 9 November 1962 respectively and essentially brought ITV coverage to previously unserved areas, in particular across mid-Wales.

Moel-y-Parc, serving North-East Wales, would however differ from the preceding stations in that much of the coverage area was already served by way of the Winter Hill transmitter.  Whilst this amounted to fringe reception beyond the franchise area, Granada, the weekday broadcaster from Winter Hill, did afford it some degree of formal recognition by providing some Welsh-language programming.  Nevertheless, the political and commercial pressure to provide a dedicated ITV service for West and North Wales (with specific obligations regarding the provision of Welsh-language programmes) included the north-eastern areas close to the border with England.   

With the Moel-y-Parc site providing a ground height of 1115-ft (340 metres) above sea level, a 750-ft mast was considered sufficient to carry transmissions from the station, which was equipped with two vision transmitters, both rated 500 watts, along with two sound transmitters each rated 125 watts.  Programme feed was provided by an 'off-air' link from Arfon.  From the transmission aerial, the maximum Effective Radiated Power (e.r.p) of 25 kilowatts was directed across a south-eastern to north-westerly arc, ensuring coverage mainly across the resort towns on the North Wales coast, whilst power was limited towards England in order to mitigate the overlap with the Winter Hill transmitter.

Moel-y-Parc commenced regular programme service on 28 January 1963, transmitting on VHF Channel 11.

The first notable expansion at Moel-y-Parc came with the installation on site of a BBC1 405-line relay, the BBC taking advantage of both the new era of co-operation between the BBC and ITA (resulting from the need to site share for the purpose of UHF) and their newly-gained access to VHF Band III.

Transmitting on VHF Channel 6, the BBC1 relay came into service from 28 October 1965, with similar installations established also at Belmont and Winter Hill.

With the advent of UHF, main stations for the 625-line colour network emerged at all locations in Wales where major transmitter sites for the 405-line network (either BBC or ITA) already existed, allowing for the usual selection of one or the other where adjacent BBC and ITA stations were in place.

As the sole existing main transmitter site in North-East Wales, Moel-y-Parc secured the role of the area UHF main station without competition and, having been re-engineered accordingly, commenced regular UHF-colour service on 5 July 1969 with the opening of the BBC2 transmitter on Channel 45.  UHF transmitters for BBC1 and ITV were rolled out here, as they were at all UHF main stations across West and North Wales, in 1973.


Aerials (1)>  Aerials (2)>  Transmission Site>  Supersize Images>  UHF Coverage Maps



SITE INFORMATION


Location:

Moel-y-Parc, Afonwen, Flintshire, CH7 5UU

Grid Reference:

SJ123701

Landlord:

Arqiva (Legacy: ITA/IBA/NTL Broadcast)

Ground Height:

340m

BBC Region:

Wales

Mast Height:

230m

ITV Region:

Wales

Aerial Height (*):

574m

 

UHF Tx Number:

14500

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

 

 


 CURRENT TRANSMISSIONS

Digital Television 

 

 

 

Analogue Radio (FM)

 

 

 

 

 

 

 

 

 

Service

: Ch/Polarisation/e.r.p

 

 

 No Services

PSB1

: 45 / H / 20kW  

 

 

PSB2

: 39 / H / 20kW  

 

 

Digital Radio (DAB)

PSB3

: 42 / H / 20kW  

 

  

COM4

: 51 / H / 10kW 

 

BBC National (Block 12B)

COM5

: 52 / H / 10kW 

Digital One (Block 11D)

COM6

: 48 / H / 10kW

 

 

MXR North West (Block 12C)

 

 

 

 

 

DSO-TERMINATED TRANSMISSIONS

(Shutdown completed 25 November 2009)

Analogue Television 

 

 

 

Digital Television

 

 

 

 

 

 

 

 

 

Service

  Ch/Polar/e.r.p

 

 

 

 

Service

 Ch/Polar/e.r.p

BBC1

: 52 / H / 100kW

 

 

 

 

Mux1

: 54 / H / 0.50kW

BBC2

: 45 / H / 100kW  

 

 

 

 

Mux2

: 58 / H / 0.50kW

ITV1

: 49 / H / 100kW 

 

 

 

 

MuxA

: 61 / H / 0.50kW

S4C

: 42 / H / 100kW

 

 

 

 

MuxB

: 64 / H / 0.50kW

Ch5

: No Service

 

 

 

 

MuxC

: 30 / H / 0.25kW

 

 

 

 

 

 

 

MuxD

: 34 / H / 0.25kW

 

 

 

 

 

 

 

 

 


Moel-y-Parc Transmitter @ A.T.V (Aerials and Television)

 

Arfon  Llanddona  Winter Hill

 

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