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The Redruth transmitter and its 16 relays serving west Cornwall and the Isles of Scilly made the switch in two stages:
At Stage 1 (DSO1) - 8 July 2009
BBC Two analogue ceased broadcasting permanently and the first BBC multiplex, Mux BBC A, launched at 8k and 64QAM.
At Stage 2 (DSO2) - 5 August 2009
All other analogue services ceased broadcasting permanently and the high powered digital multiplexes launched at 8k and 64QAM.
For futher information on 8k and 64QAM transmission modes please click here.
On the 30th September 2009 at Redruth, SDN and ARQ B increased in power levels reaching their final frequency positions post DSO.
Whilst the actual date is yet to be defined, in 2011 ARQ A will increase in power levels reaching its final frequency position post DSO (M1).
Published by Ofcom, these documents contain details of transmission characteristics (channel allocations, ERPs, aerial groups and offsets) which will be adopted post digital switchover. This information is subject to change and therefore should be checked regularly.
To view the Ofcom Digital Swithover transmitter details for this and other regions please visit the Ofcom website.
Published by Ofcom, these maps detail transmitter locations and DSO transmitter groupings. This information can change and therefore should be checked regularly.
To view the Ofcom transmitter location map for this and other regions please visit the Ofcom website.
Ofcom have confirmed that there are 2 analogue self helps,in the Redruth transmitter group, their status is as follows:
For further information about self helps please visit the Ofcom website.
At Redruth, all multiplexes remain within analogue aerial group - group B.
At Bossiney and Perranporth, all three multiplexes will be outside the analogue aerial group C/D. Replacement group B antennas may be required, although most existing aerials should perform satisfactorily as the new channels are lower in frequency.
At all other relay sites, at switchover, all multiplexes will be within the analogue aerial group.
Channel changes at Bosastle, Bossiney, Gulval, Perranporth, Praa Sands, St Austell and St Just will mean that channelised communal systems will need to be reconfigured at DSO1 and DSO2.
Channel changes at Redruth mean that channelised communal systems will need to be reconfigured on the 30th of September 2009 due to the later technical event (H9).
A household in west Cornwall and the Isles of Scilly is most likely to be watching the Redruth transmitter group. However, they could also be watching the Caradon Hill or Stockland Hill transmitter groups.
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