Haverfordwest transmitting station

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{{More citations needed|date=March 2022}}

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{{Short description|Broadcasting and telecommunications facility}}

{{Infobox UK Transmitter |

|name = Haverfordwest

|image = 250px

|map = {{Location map+

| Wales Pembrokeshire

| width = 250

| float = center

| caption =

| places = {{Location map~

| Wales Pembrokeshire

| label = Haverfordwest

| position = bottom

| mark =

| coordinates = {{coord|51.899167|-4.866389|type:landmark_region:GB|display=inline}}

}}

{{Location map~

| Wales Pembrokeshire

| label = Preseli

| position =

| mark = Green pog.svg

| coordinates = {{coord|51.944444|-4.661111|type:landmark_region:GB|display=inline}}

}}

}}

|height = {{convert|154.4|m|ft|0}}

|gridref= SN028261

|built =

|demolished =

|collapsed =

|relay = Preseli

|BBC = BBC Wales

|ITV = ITV Cymru Wales

}}

The Haverfordwest transmitting station is a broadcasting and telecommunications facility located at Woodstock about {{convert|13|km|mi|0|abbr=on}} to the north east of the town of Haverfordwest, in Pembrokeshire, Wales ({{gbmapping|SN028261}}). It was originally built by the BBC, entering service in early 1964 acting as a main transmitter for the 405-line VHF television system, and as a repeater for Band 2 VHF FM radio received off-air from Blaenplwyf transmitting station.{{cite web|url=http://downloads.bbc.co.uk/rd/pubs/reports/1964-22.pdf|title= RESEARCH DEPARTMENT - Transmitting aerials for the Haverfordwest v.h.f. television and v.h.f. sound station|website=BBC|date=April 1964}} It is now owned and operated by Arqiva.{{Cite book |last= |first= |url=https://books.google.com/books/about/Towers_in_Wales.html?id=3xqQSQAACAAJ |title=Towers in Wales: Transmitter Sites in Wales, Cardiff Castle, the Kymin, Wenvoe Transmitting Station, Kilvey Hill |date=May 2010 |publisher=General Books |isbn=978-1-155-95512-4 |language=en}}{{Citation needed|date=July 2024}}

The site has a {{convert|155|m|ft|0|abbr=on}} guyed steel lattice mast erected on land that is itself about {{convert|187|m|ft|0|abbr=on}} above sea level. The radio broadcasts cover the majority of Pembrokeshire, except the north eastern part of the county. The signals also can reach the outskirts of Cardiff and the Vale of Glamorgan.

It currently carries seven analogue FM radio stations, including BBC Radio 1, BBC Radio 2, BBC Radio 3, BBC Radio 4, BBC Radio Cymru, BBC Radio Wales and Radio Pembrokeshire.

When UHF analogue television was added in 1990,{{cite web|url=http://www.bbceng.info/Information/eid/press-releases/Transmitter_Press_Releases_07Oct1991_to_18July1990.pdf|title=Transmitter Press Release - Medium Transmitter Mast - New Aircraft Warning Hazard Lights|website=BBC Engineering|date=7 October 1991}} those services were provided only at very low power and only designed to cover the small villages of Puncheston, Castlebythe, Little Newcastle and Rosebush, which are all located within about {{convert|7|km|mi|0|abbr=on}} of the mast.

It currently carries three digital television multiplexes at twice the ERP of the analogue services that they replaced, thus providing digital TV to a much larger area than had been served before.

The mast had its aircraft warning lights upgraded in October 2006, from white xenon discharge flashers to red lamps employing arrays of ultrabright LEDs.