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Saorview & Freeview frequency allocations in Ireland (as of March 2014)

  • 20-03-2014 8:05pm
    #1
    TAFKAlawhec
    Registered Users, Registered Users 2 Posts: 618 ✭✭✭


    I remember someone here posted a detailed copy of the Comreg & Ofcom agreement on the replanning of frequency agreements between the Irish Republic and the UK which was agreed upon by the two parties in June 2012. It involved clearing all previous allocations agreed at the Geneva 2006 (GE06) ITU Region 1 conference, and finding new allocations for those allocations that had to find a new home. It also dealt with the UK plan of rearranging the "600MHz band" for temporary frequencies.

    Using the info in the agreement, the following is a list of allocations now in place for all main terrestrial TV broadcast sites in the UHF broadcast band across all of Ireland. As can be seen, some frequency allocations have varying directional restrictions on them (those along the east coast are especially impacted. Frequencies currently in use are underlined, though this doesn't necessarily mean that they are being used at their maximum power. Those frequencies with the higher reckoned coverage area in terms of geography are mentioned first. I'll add more details for these sites and some of the mid-powered sites like Waterford, Tonabracky, Castlebar, Strabane, Camlough, Larne etc. in the next few days/weeks when I can eek out a bit of time to compile...

    Note that both the Republic of Ireland and the UK each have cleared a Single Frequency Network in their respective countries on channel 36 (598MHz) - coverage in border areas and some parts of the east coast will be impacted to minimise co-channel interference between the two countries...

    Frequencies listed as supressed means that the juristiction involved has given up the frequency to use at that site, where it is redundant and to normally to allow for it to be co-ordinated elsewhere.


    Republic of Ireland

    Cairn Hill (all horizontal)
    33, 34, 40, 41, 43, [U]44[/U], 46, [U]47[/U] (all 160kW Max ERP, omnidirectional)

36 (Max ERP 160kW, 3db reduction between 337-70 degrees, RoI wide SFN)

Supressions: 50, 51

    Clermont Carn (all vertical)
    [U]52[/U], [U]56[/U] (Max ERP 160kW, following restrictions apply: 3db  between 60-69 degrees, 6db between 70-79 degrees, 10db between 80-89  degrees, 16db between 90-110 degrees, 14db between 111-120 degrees, 8db  between 121-130 degrees, 4db between 131-140 degrees & 2db between  141-150 degrees)

53, 57, 60 (Max ERP 160kW, "best effort" to meet the following: 16db  reduction between 33-45 degrees to protect Stranraer (SCO), 6-16db  reduction between 110-140 degrees to protect Llandonna (WAL), 5db  reduction between 141-150 degrees to protect Carmel (WAL))

35 (Max ERP 160kW, 9.5-18db reductions between 335-5 degrees to protect Limavady & L/Derry)

48 (Max ERP 160kW, 12-18db restrictions between 335-0 degrees to protect  Limavady, Draperstown, Moneymore, Bellair & Carnmoney Hill, 6-16db  reduction between 110-140 degrees to protect Llandonna (WAL))

51 (Max ERP 160kW, restrictions in place to protect Cambret Hill (SCO),  co-channel NI relays & adjacent channel Camlough (50), 12db between  335-339 degrees, 16db between 340-354 degrees & 18db between 355-0  degrees, 12db reduction between 110-120 degrees to protect Moel y Parc  (WAL), 6db reduction between 121-140 degrees to protect Arfon (WAL))

36 (Max ERP 20kW, 2-18db reductions between 315-170 degrees, RoI wide SFN)

Supressions: none
    Dungarvan (all horizontal)
    50, [U]55[/U], [U]59[/U] (Max ERP 10kW, 3db reduction between 105-125 degrees to protect Huntshaw Cross (ENG))

31, 37 (Max ERP 10kW, 3db restriction between 108-135 degrees to protect Caradon Hill (ENG))

54, 58 (Max ERP 10kW, 3db reduction between 80-115 degrees to protect Mendip (ENG) & Carmel (WAL))

48 (Max ERP 10kW, 3db reduction between 105-125 degrees to protect Huntshaw Cross (ENG), 2.5-3db reduction between 128-147 degrees to protect Redruth (ENG))

36 (Max ERP 10kW, 2-4db reduction between 80-135 degrees, RoI wide SFN)

Supressions: none
    Holywell Hill (all horizontal)
    [U]30[/U], [U]33[/U] (all 20kW ERP, omnidirectional)

25, 28 (Max ERP 20kW, 8db reduction between 175-185 degrees to protect Brougher Mountain)

23, 26, 29, 34 (Max ERP 20kW, 6db reduction between 70-135 degrees to protect Divis (all) & Darvel (SCO) (not 34))

Supressions: 32, 35
Note:  RoI SFN on channel 36 not cleared for Holywell Hill
    Kippure (all horizontal)
    29 (Max ERP 125kW, 4db reduction between 345-20 degrees to protect Divis & Darvel (SCO))

50, 55, 59 (Max ERP 125kW, 12db reduction between 45-90 degrees to  protect Winter Hill (ENG), 8db reduction between 138-155 degrees to  protect Huntshaw Cross (ENG), 7db reduction between 340-0 degrees to  protect Limavady)

49, [U]54[/U], [U]58[/U] (can be used as a SFN under the Three Rock GE06  entry on same channel. Combined outgoing interference from both Three  Rock & Kippure not to exceed that of Three Rock GE06 entry on same  channel)

31, 37 (Max ERP 125kW, 12db reduction between 45-95 degrees to protect  Winter Hill (ENG) & Blaenplwyf (WAL), 12-14db reductions between  100-105, 110-115 & 120-135 degrees to protect Blaenplwyf (WAL), 9db  reduction between 140-155 degrees to protect Blaenplwyf (WAL) &  Caradon Hill (ENG), 8db restriction between 160-170 degrees to protect  Caradon Hill (ENG), 3db reduction between 323-345 degrees to protect  Brougher Mountain)

32 (Max ERP 125kW, 19db reduction between  45-50 degrees to protect Port St. Mary (IOM), 24db reduction between  77-94 & 93-112 degrees to protect Llanddona (WAL) & Arfon (WAL),  20db reduction between 132-150 degrees to protect Presely (WAL))

22 (Max ERP 125kW, subject to special restrictions to protect multiple UK allocations between 6-33db reductions)

36 (Max ERP 63kW, 3-13db reduction between 330-175 degrees, RoI wide SFN)

Supressions: 33, 35
    Maghera (all horizontal)
    31, 37, 50, 54, [U]55[/U], 58, 59 (all 160kW Max ERP, omnidirectional)

[U]48[/U] or 49 (Max ERP 160kW, omnidirectional - can use either 48 or 49)

36 (Max ERP 160kW, omnidirectiona, RoI wide SFN)

Supressions: none
    Mount Leinster (all horizontal)
    33, 34 (Max ERP 160kW, 4db reduction between 145-165 degrees to protect Redruth)

30 (Max ERP 160kW, 6db reduction between 25-55 degrees to protect Caldbeck (ENG))

[U]23[/U], [U]26[/U] (Max ERP 160kW, 3db reduction between 355-24 degrees to protect Divis, 6db reduction between 25-55 degrees to protect Caldbeck (ENG), 3db reduction between 120-135 degrees to protect Stockland Hill (ENG))

39, 42, 45 (Max ERP 160kW, 7db reduction between 110-130 degrees to protect Presely)

36 (Max ERP 160kW, 3-12db reduction between 355-165 degrees, RoI wide SFN)

Supressions: 49
    Mullaghanish (all horizontal)
    [U]21[/U], [U]24[/U], 27, 32, 35 (all 200kW Max ERP, omnidirectional)

22, 25, 28 (Max ERP 200kW, 10db reduction between 104-124 degrees to protect Caradon Hill (ENG))

36 (Max ERP 200kW, 10db reduction between 104-124 degrees to protect Caradon Hill (ENG), RoI wide SFN)

Supressions: 31
    Spur Hill (all horizontal)
    39, 42, [U]45[/U], [U]49[/U], 53, 57, 60 (all 50kW Max ERP, omnidirectional)

34 (Max ERP 50kW, 6db restriction between 98-143 degrees to protect Redruth & Huntshaw Cross (both ENG))

36 (Max ERP 50kW, 6db restriction between 89-140 degrees, RoI wide SFN)

Supressions: none
    Three Rock (all horizontal)
     
    34 (125kW Max ERP omnidirectional)

[U]33[/U] (Max ERP 125kW, 3db reduction between 345-0 degrees to protect Divis)

[U]30[/U] (Max ERP 125kW, 10db reduction between 25-50 degrees to protect Caldbeck (ENG))

23, 26 (Max ERP 125kW, 3db reduction between 345-359 degrees to protect Divis, 6db reductions between 0-20, 25-50 & 82-86 degrees to protect GB allocations)

29, 50, 55, 59 (can be used as a SFN under the Kippure GE06 entry on same channel. Combined outgoing interference from both Three Rock & Kippure not to exceed that of Kippure GE06 entry on same channel)

49 (Max ERP 125kW, 3db reduction between 340-0 degrees to protect Limavady & Camlough, 12db reduction between 45-90 degrees to protect Winter Hill (ENG))

54, 58 (Max ERP 125kW, 3db reduction between 340-0 degrees to protect Limavady & Camlough, 6db reduction between 28-41 degrees to protect Cambret Hill (SCO), 12db reduction between 45-90 degrees to protect Winter Hill (ENG))

36 (Max ERP 63kW, 3-16db reduction between 315-175 degrees, RoI wide SFN)

Supressions: None
    Truskmore (all horizontal)
    48, 51, 52, [U]53[/U], 56, [U]57[/U], 60 (all 160kW Max ERP omnidirectional)

35 (Max ERP 160kW, 10db reduction between 45-70 degrees to protect Limavady & L/Derry)

36 (Max ERP 160kW, omnidirectional, RoI wide SFN)

Supressions: None
    Woodcock Hill (all horizontal)
    33, 34, 39, 41, 42, [U]44[/U], 45, [U]47[/U] (all 10kW Max ERP, omnidirectional)

36 (Max ERP 10kW, omnidirectional, RoI wide SFN)

Supressions: 49, 51
    Northern Ireland

    Brougher Mountain (all horizontal)
    [U]21[/U], [U]22[/U], [U]24[/U], [U]25[/U], [U]27[/U], [U]28[/U] (all 20kW Max ERP omnidirectional)

31, 37 (Max ERP 20kW, 2-5db reduction between 135-190 degrees to protect Kippure)

[U]30[/U] (Max ERP 20kW, 13db reduction between 347-019 degrees to protect Holywell Hill)

Suppressions: 32
Note: UK SFN on channel 36 not cleared for Brougher Mountain
    Divis (all horizontal)
    [U]21[/U], [U]23[/U], [U]24[/U], [U]26[/U], [U]27[/U], 34 (all 100kW Max ERP omnidirectional)

[U]29[/U] (Max ERP 100kW, "best effort" to meet 5db reduction between 197-223 degrees to protect Kippure)

[U]33[/U] (Max ERP 100kW, 6db reduction between 280-320 degrees to protect Holywell Hill)

36 (Max ERP 100kW, omnidirectional, UK wide SFN)

Suppressions: 31, 37
Note: An additional multiplex is operating at Divis on channel [U]30[/U] for local TV coverage, Max ERP 5kW with directional coverage to the NE, more details soon...
    Limavady (all horizontal)
    32, 35, [U]49[/U], [U]50[/U], [U]54[/U], [U]55[/U], [U]58[/U], [U]59[/U] (all 20kW Max ERP omnidirectional)

48 (Max ERP 20kW, 4db reduction between 210-350 degrees to protect Truskmore & Letterkenny)

36 (Max ERP 20kW, 4db reduction between 210-350 degrees, UK wide SFN)

Supressions: None


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