Freeview: Three Rock Saorview transmitter
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Saorview on the Three Rock transmitter

Google mapBing mapGoogle Earth53.246,-6.240 or 53°14'46"N 6°14'23"W

4G at 800MHz (at800) Freeview reception issues

When 800MHz 4G mobile broadband services start there will be 1 multiplex in the higher risk range (C21-23, C30, C59-60): C30: SV1
See How do I know if the 4G broadband will overload my Freeview? and Full UK map of 4G issue areas for details.

Transmitter fauls and engineering works



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The symbol shows the location of the Three Rock transmitter.

Other maps:Saorview region

Radiation patterns

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The bright green areas shown where the signal from this transmitter is strong, dark green areas are poorer signals. Those parts shown in yellow may have interference on the same frequency from other masts.

Three Rock transmitter Saorview broadcasts

If you have any kind of Saorview fault, follow this Saorview reset procedure first.

Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below. The rating shown takes in account the output power level and the various Saorview transmission modes and do not indicate an ongoing fault.

MuxEffective power level, aerial positionRatingModeWatts
SV1
 horizontal
Maximum63,000
Channel icons
1 RTE One, 2 RTE Two HD, 3 TV3, 4 TG4, 5 RTE News Now/Euronews, 6 3e, 7 RTE jr, 8 RTE One +1, plus 11 others
• as a digital multiplex transmitted on frequency C30 (546.0MHz) from 578m datum.
SV2
 horizontal
Maximum63,000
Channel icons
11 TBC 11, 12 TBC 12, 13 TBC 13, 14 TBC 14, 15 TBC 15, 16 TBC 16, 17 TBC 17,
• as a digital multiplex transmitted on frequency C33 (570.0MHz) from 578m datum.


How the transmission frequencies change over time

years1984-971997-981998-20122012-132013-182013-18
aerial groupA B C/D E K VHFA B C/D E K VHFA B C/D E K VHFA KA KA K
C30SV1SV1SV1
600C33SV2SV2SV2

orange background for multiplexes names moregreen background for transmission frequencieslilac background for power levels in watts800MHz band: 4G mobile to start in 2013700MHz band: possible 4G in 2019 more600MHz band: new or moved digital TV services more
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W
Italics for analogue, digital switchover was Sundays 1st January and 1st January 2012.

Comparison of old analogue and current digital signal levels

SV1≡, SV2≡ 63kW


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Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

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