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Coordinates: 54°04′48″N 6°19′17″W / 54.0801°N 6.3215°W / 54.0801; -6.3215
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{{Short description|Mountain in Ireland}}
{{Short description|Mountain in Ireland}}
{{Merge from|Clermont Carn transmission site|discuss=Talk:Clermont Carn#Proposed merge of Clermont Carn transmission site into Clermont Carn|date=August 2022}}
{{Use dmy dates|date=June 2014}}
{{Use dmy dates|date=June 2014}}
{{Use Hiberno-English|date=June 2014}}
{{Use Hiberno-English|date=June 2014}}
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| easiest_route =
}}
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'''Clermont Carn''' ({{Irish place name|Carnán Mhaighréid Náir|[[cairn]] of noble Margaret}}),<ref name="mv">{{cite web|url=http://mountainviews.ie/mv/index.php?mtnindex=434|title=Cooley Area - Clermont Carn|publisher=MountainViews.ie|access-date=2008-07-23}}</ref> also known as '''Black Mountain''', is a mountain that rises to {{convert|510|m|ft}} in the [[Cooley Mountains]] of [[County Louth]], Ireland. It is at the border with Northern Ireland, and is also the location of the [[Clermont Carn transmission site]]. The mountain's name refers to an ancient burial [[cairn]] on its summit, and to [[Viscount Clermont|Lord Clermont]] of [[Ravensdale, County Louth|Ravensdale]].<ref name="mv"/>
'''Clermont Carn''' ({{Irish place name|Carnán Mhaighréid Náir|[[cairn]] of noble Margaret}}),<ref name="mv">{{cite web|url=http://mountainviews.ie/mv/index.php?mtnindex=434|title=Cooley Area - Clermont Carn|publisher=MountainViews.ie|access-date=2008-07-23}}</ref> also known as '''Black Mountain''', is a mountain that rises to {{convert|510|m|ft}} in the [[Cooley Mountains]] of [[County Louth]], Ireland. It is at the border with Northern Ireland, and is also the location of the Clermont Carn transmission site. The mountain's name refers to an ancient burial [[cairn]] on its summit, and to [[Viscount Clermont|Lord Clermont]] of [[Ravensdale, County Louth|Ravensdale]].<ref name="mv"/>


==Cairn==
==Cairn==
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[[Image:RTE Transmitter - Clermont Carn. - geograph.org.uk - 687612.jpg|thumb|260px|right|The links tower and transmitter mast]]
[[Image:RTE Transmitter - Clermont Carn. - geograph.org.uk - 687612.jpg|thumb|260px|right|The links tower and transmitter mast]]


The '''Clermont Carn transmission site''' is situated at the summit of [[Clermont Carn]] in [[County Louth]] and was opened in 1981 to provide UHF television coverage for the northeast of the Republic of Ireland, counties Louth, [[County Meath|Meath]], and North [[County Dublin]].
The '''Clermont Carn transmission site''' is situated at the summit of Clermont Carn and was opened in 1981 to provide UHF television coverage for the northeast of the Republic of Ireland, counties Louth, [[County Meath|Meath]], and North [[County Dublin]].


With the site being less than {{convert|2|km|spell=in}} from the border it was clear that this transmitter would be used to provide [[RTÉ]] services into Northern Ireland. Initially the two channels [[RTÉ One]] and [[RTÉ2]] were carried on Ch52 and Ch56 with [[Virgin Media One|TV3]] on Ch66 and [[TG4]] on Ch68 following later. FM radio transmission was also added providing coverage of the five national channels to its service area, and in 1982, a 2M [[Amateur Radio]] Repeater was installed.<ref>{{cite web|last=Dundalk Amateur Radio Society|title=EI2CCR Repeater|url=http://ei7dar.com/repeater.html|publisher=www.ei7dar.com|access-date=2013-03-07|archive-url=https://web.archive.org/web/20130827151234/http://ei7dar.com/repeater.html|archive-date=27 August 2013|url-status=dead}}</ref>
With the site being less than {{convert|2|km|spell=in}} from the border it was clear that this transmitter would be used to provide [[RTÉ]] services into Northern Ireland. Initially the two channels [[RTÉ One]] and [[RTÉ2]] were carried on Ch52 and Ch56 with [[Virgin Media One|TV3]] on Ch66 and [[TG4]] on Ch68 following later. FM radio transmission was also added providing coverage of the five national channels to its service area, and in 1982, a 2M [[Amateur Radio]] Repeater was installed.<ref>{{cite web|last=Dundalk Amateur Radio Society|title=EI2CCR Repeater|url=http://ei7dar.com/repeater.html|publisher=www.ei7dar.com|access-date=2013-03-07|archive-url=https://web.archive.org/web/20130827151234/http://ei7dar.com/repeater.html|archive-date=27 August 2013|url-status=dead}}</ref>
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[[Digital terrestrial television]] (DTT) trials started in 2008, and in common with all [[2RN (RTÉ Networks)|2RN]] transmitters in Ireland, analogue television transmissions from this site ended on 24 October 2012.<ref>{{cite news|title=Analogue consigned to broadcasting history|url=http://www.irishtimes.com/newspaper/ireland/2012/1025/1224325680199.html|access-date=2012-06-12|newspaper=The Irish Times|date=2012-10-25}}</ref> Uniquely, Clermont Carn is the only main television transmitter in Ireland that is vertically [[Antenna (radio)#Polarization|polarised]], and does not service any [[Broadcast relay station|relay transmitters]]. Today the Irish digital television service [[Saorview]] is broadcast from here to a sizeable area including a large tract of Northern Ireland, with a good signal being received in [[Belfast]] and beyond. This overspill has been welcomed by the UK's [[Ofcom]] who have provided information for viewers in Northern Ireland about receiving the RTÉ channels and [[TG4]] both from within Northern Ireland on the UK's [[Freeview (UK)|Freeview]] service, and via the [[Saorview]] overspill.<ref>{{cite web|last=Ofcom|title=Digital Terrestrial TV Coverage Map of TG4 and RTÉ in Northern Ireland|url=http://consumers.ofcom.org.uk/files/2012/07/NIMuxFactsheet4.pdf|publisher=Ofcom|access-date=2012-11-06|archive-url=https://web.archive.org/web/20121024112144/http://consumers.ofcom.org.uk/files/2012/07/NIMuxFactsheet4.pdf|archive-date=24 October 2012|url-status=dead}}</ref>
[[Digital terrestrial television]] (DTT) trials started in 2008, and in common with all [[2RN (RTÉ Networks)|2RN]] transmitters in Ireland, analogue television transmissions from this site ended on 24 October 2012.<ref>{{cite news|title=Analogue consigned to broadcasting history|url=http://www.irishtimes.com/newspaper/ireland/2012/1025/1224325680199.html|access-date=2012-06-12|newspaper=The Irish Times|date=2012-10-25}}</ref> Uniquely, Clermont Carn is the only main television transmitter in Ireland that is vertically [[Antenna (radio)#Polarization|polarised]], and does not service any [[Broadcast relay station|relay transmitters]]. Today the Irish digital television service [[Saorview]] is broadcast from here to a sizeable area including a large tract of Northern Ireland, with a good signal being received in [[Belfast]] and beyond. This overspill has been welcomed by the UK's [[Ofcom]] who have provided information for viewers in Northern Ireland about receiving the RTÉ channels and [[TG4]] both from within Northern Ireland on the UK's [[Freeview (UK)|Freeview]] service, and via the [[Saorview]] overspill.<ref>{{cite web|last=Ofcom|title=Digital Terrestrial TV Coverage Map of TG4 and RTÉ in Northern Ireland|url=http://consumers.ofcom.org.uk/files/2012/07/NIMuxFactsheet4.pdf|publisher=Ofcom|access-date=2012-11-06|archive-url=https://web.archive.org/web/20121024112144/http://consumers.ofcom.org.uk/files/2012/07/NIMuxFactsheet4.pdf|archive-date=24 October 2012|url-status=dead}}</ref>


==Current Transmissions==
== Digital television ==
=== Digital television ===
{| class="wikitable sortable"
{| class="wikitable sortable"
!Frequency
!Frequency
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|42
|42
|160 kW
|160 kW
|[[Saorview]] 1
|[[Saorview|2RN]] 1
|V
|V
|-
|-
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|45
|45
|160 kW
|160 kW
|[[Saorview]] 2
|[[Saorview|2RN]] 2
|V
|V
|}
|}


== FM radio ==
=== Analogue television ===
All services ceased October 24th, 2012. <ref>https://www.rte.ie/archives/exhibitions/681-history-of-rte/709-rte-2010s/362294-irish-analogue-television-broadcasting-comes-to-an-end/</ref> (PAL-I UHF)
{| class="wikitable sortable"
!Frequency
!UHF
!kW
!Service
|-
|719.25&nbsp;MHz
|52
|250 kW
|[[RTÉ One]]
|-
|751.25&nbsp;MHz
|56
|250 kW
|[[RTÉ Two]]
|-
|831.25&nbsp;MHz
|66
|250 kW
|[[TV3 Ireland|TV3]]
|-
|847.25&nbsp;MHz
|68
|250 kW
|[[TG4]]
|}

=== Digital Radio ===
Ceased on 31st of March, 2021. <ref>https://www.rte.ie/news/ireland/2021/0302/1200334-rte-dab-network/</ref>
{| class="wikitable sortable"
!Frequency
!Block
!kW
!Operator
|-
|227.360&nbsp;MHz
|12C
|5 kW <ref>https://www.wohnort.org/dab/ireland.html#National</ref>
|[[DAB in Ireland|DAB Ireland Mux 1]]
|}

=== FM radio ===
{| class="wikitable sortable"
{| class="wikitable sortable"
!Frequency
!Frequency
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|-
|-
|105.5&nbsp;MHz
|105.5&nbsp;MHz
|40 kW
|80 kW
|[[Today FM]]
|[[Today FM]]
|-
|-
|107.9&nbsp;MHz
|107.9&nbsp;MHz
|0.3 kW
|4 kW
|[[Newstalk]]
|[[Newstalk]]
|}
|}


== Amateur radio ==
=== Amateur radio ===
{| class="wikitable sortable"
{| class="wikitable sortable"
!Frequency
!Frequency
!W
!ERP
!Service
!Service
|-
|-
|145.675&nbsp;MHz (Output) 145.075&nbsp;MHz (Input) CTCSS 110.9&nbsp;Hz
|145.675&nbsp;MHz (Output) 145.075&nbsp;MHz (Input) CTCSS 110.9&nbsp;Hz
|15
|15 W
|EI2CCR 2m 12.5&nbsp;kHz Repeater (Dundalk Amateur Radio Society www.ei7dar.com)
|EI2CCR 2m 12.5&nbsp;kHz Repeater (Dundalk Amateur Radio Society www.ei7dar.com)
|}
|}


==Gallery==
==Gallery==

<gallery>
<gallery>
⚫
File:Approach Clermont.jpg|Approach road to Clermont summit
⚫
File:Clermont 2RN distant.jpg|Summit seen from Church Hill Road Jonesborough County Armagh
File:Clermont 2RN closer.jpg|Mast seen from the N1 road
File:Clermont 2RN closer.jpg|Mast seen from the N1 road
File:Clarmont closeup.jpg|Top of mast
File:Clarmont closeup.jpg|Top of mast
File:Clarmont compound.jpg|The transmitter building
File:Clarmont compound.jpg|The transmitter building
</gallery>

==Gallery==
<gallery>
⚫
File:Approach Clermont.jpg|Approach road to Clermont summit
⚫
File:Clermont 2RN distant.jpg|Summit seen from Church Hill Road Jonesborough County Armagh
</gallery>
</gallery>


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{{Reflist}}
{{Reflist}}
{{Mountains and hills of Leinster|state=collapsed}}
{{Mountains and hills of Leinster|state=collapsed}}
{{Main broadcast transmitters in Ireland|state=collapsed}}


[[Category:Transmitter sites in Ireland]]
[[Category:Mountains and hills of County Louth]]
[[Category:Mountains and hills of County Louth]]

Latest revision as of 18:51, 26 October 2024

Clermont Carn
Carnán Mhaighréid Náir
Clermont Carn summit.
Highest point
Elevation510 m (1,670 ft)[1]
Prominence312 m (1,024 ft)[1]
Coordinates54°04′48″N 6°19′17″W / 54.0801°N 6.3215°W / 54.0801; -6.3215
Naming
Language of nameIrish
Geography
Clermont Carn is located in island of Ireland
Clermont Carn
Clermont Carn
Location in Ireland
LocationLouth, Ireland
Parent rangeCooley Mountains

Clermont Carn (Irish: Carnán Mhaighréid Náir, meaning 'cairn of noble Margaret'),[1] also known as Black Mountain, is a mountain that rises to 510 metres (1,670 ft) in the Cooley Mountains of County Louth, Ireland. It is at the border with Northern Ireland, and is also the location of the Clermont Carn transmission site. The mountain's name refers to an ancient burial cairn on its summit, and to Lord Clermont of Ravensdale.[1]

Cairn

[edit]

The 'carn' in the mountain's name refers to an ancient burial monument on its summit,[2][3] also known as 'Black Mountain Chambered Cairn' or 'Ravensdale Park Cairn'. This cairn is 21 m (69 ft) in diameter and over 4 m (13 ft) high, with the remains of another trapezoidal cairn 3.5 m (11 ft) long in the southwest part. Three lintels are in position and the rear part is corbelled. Surrounding this was a court (5.5 × 7 m) and a gallery containing at least two burial chambers.[4]

It was built in the early Neolithic, c. 4000–3500 BC, and forms part of the Clyde-Carlingford group of court cairns. In recent decades the site has been disturbed by quarrying and blasting.[5][6] It is a protected National Monument.[7][8]

Transmission site

[edit]
The links tower and transmitter mast

The Clermont Carn transmission site is situated at the summit of Clermont Carn and was opened in 1981 to provide UHF television coverage for the northeast of the Republic of Ireland, counties Louth, Meath, and North County Dublin.

With the site being less than two kilometres (1.2 mi) from the border it was clear that this transmitter would be used to provide RTÉ services into Northern Ireland. Initially the two channels RTÉ One and RTÉ2 were carried on Ch52 and Ch56 with TV3 on Ch66 and TG4 on Ch68 following later. FM radio transmission was also added providing coverage of the five national channels to its service area, and in 1982, a 2M Amateur Radio Repeater was installed.[9] In 2002, a new 120-metre-tall (390 ft) cable-stayed mast was erected and this greatly improved coverage into Northern Ireland. The original self-supporting tower was truncated, and is now only used for microwave links and the Amateur Radio Repeater.

Digital terrestrial television (DTT) trials started in 2008, and in common with all 2RN transmitters in Ireland, analogue television transmissions from this site ended on 24 October 2012.[10] Uniquely, Clermont Carn is the only main television transmitter in Ireland that is vertically polarised, and does not service any relay transmitters. Today the Irish digital television service Saorview is broadcast from here to a sizeable area including a large tract of Northern Ireland, with a good signal being received in Belfast and beyond. This overspill has been welcomed by the UK's Ofcom who have provided information for viewers in Northern Ireland about receiving the RTÉ channels and TG4 both from within Northern Ireland on the UK's Freeview service, and via the Saorview overspill.[11]

Current Transmissions

[edit]

Digital television

[edit]
Frequency UHF ERP Multiplex Pol
642 MHz 42 160 kW 2RN 1 V
666 MHz 45 160 kW 2RN 2 V

Analogue television

[edit]

All services ceased October 24th, 2012. [12] (PAL-I UHF)

Frequency UHF kW Service
719.25 MHz 52 250 kW RTÉ One
751.25 MHz 56 250 kW RTÉ Two
831.25 MHz 66 250 kW TV3
847.25 MHz 68 250 kW TG4

Digital Radio

[edit]

Ceased on 31st of March, 2021. [13]

Frequency Block kW Operator
227.360 MHz 12C 5 kW [14] DAB Ireland Mux 1

FM radio

[edit]
Frequency ERP Service
87.8 MHz 40 kW RTÉ Radio 1
95.2 MHz 40 kW RTÉ lyric fm
97.0 MHz 40 kW RTÉ 2fm
102.7 MHz 40 kW RTÉ Raidió na Gaeltachta
105.5 MHz 80 kW Today FM
107.9 MHz 4 kW Newstalk

Amateur radio

[edit]
Frequency ERP Service
145.675 MHz (Output) 145.075 MHz (Input) CTCSS 110.9 Hz 15 W EI2CCR 2m 12.5 kHz Repeater (Dundalk Amateur Radio Society www.ei7dar.com)
[edit]
  • Approach road to Clermont summit
    Approach road to Clermont summit
  • Summit seen from Church Hill Road Jonesborough County Armagh
    Summit seen from Church Hill Road Jonesborough County Armagh
  • Mast seen from the N1 road
    Mast seen from the N1 road
  • Top of mast
    Top of mast
  • The transmitter building
    The transmitter building

References

[edit]
  1. ^ a b c d "Cooley Area - Clermont Carn". MountainViews.ie. Retrieved 23 July 2008.
  2. ^ Somers, Dermot (4 October 2012). Endurance: Heroic Journeys in Ireland. O'Brien Press. ISBN 9781847175205 – via Google Books.
  3. ^ Herity, Michael (1 January 1975). Irish passage graves: neolithic tomb-builders in Ireland and Britain, 2500 B.C. Barnes & Noble Books. ISBN 9780064928403 – via Google Books.
  4. ^ "Ravensdale Park Passage Tomb". Megalithic Monuments of Ireland.
  5. ^ "Ravensdale Park Court Tomb".
  6. ^ "Clermont Carn 510m mountain, Cooley/Gullion Cooley Mountains Ireland at MountainViews.ie".
  7. ^ Cooney, Gabriel (6 December 2012). Landscapes of Neolithic Ireland. Routledge. ISBN 9781135108557 – via Google Books.
  8. ^ Cunningham, Noreen; McGinn, Pat (1 January 2001). The Gap of the North: The Archaeology & Folklore of Armagh, Down, Louth, and Monaghan. O'Brien Press. ISBN 9780862787073 – via Google Books.
  9. ^ Dundalk Amateur Radio Society. "EI2CCR Repeater". www.ei7dar.com. Archived from the original on 27 August 2013. Retrieved 7 March 2013.
  10. ^ "Analogue consigned to broadcasting history". The Irish Times. 25 October 2012. Retrieved 12 June 2012.
  11. ^ Ofcom. "Digital Terrestrial TV Coverage Map of TG4 and RTÉ in Northern Ireland" (PDF). Ofcom. Archived from the original (PDF) on 24 October 2012. Retrieved 6 November 2012.
  12. ^ https://www.rte.ie/archives/exhibitions/681-history-of-rte/709-rte-2010s/362294-irish-analogue-television-broadcasting-comes-to-an-end/
  13. ^ https://www.rte.ie/news/ireland/2021/0302/1200334-rte-dab-network/
  14. ^ https://www.wohnort.org/dab/ireland.html#National
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