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The Carmel transmitter and its 18 relays serving parts of south and central Wales made the switch in two stages:
At Stage 1 (DSO1) - 26 August 2009
BBC Two analogue ceased broadcasting permanently and the first BBC multiplex, Mux BBC A, launched at 8k and 64QAM.
At Stage 2 (DSO2) - 23 September 2009
All other analogue services ceased broadcasting permanently and high powered digital multiplexes launched at 8k and 64QAM.
For futher information on 8k and 64QAM transmission modes please click here.
On 09 September 2009, all of Wales underwent a multiplex configuration change. All Welsh existing DTT viewers, will need to retune their digital equipment in order to receive S4C which will broadcast from Mux D3&4. For further information about the Wales retune please visit the S4C website.
On 30 September 2009, there was a Nationwide autumn retune event (multiplex configuration change). All DTT viewers have to retune their digital equipment. For further information about the national retune please visit the Freeview website.
| Abercraf | Brechfa | Bronwydd Arms |
| Builth Wells | Cwm Twrch | Cilycwm |
| Cwmgors | Erwood | Greenhill |
| Llanwrtyd Wells | Llandrindod Wells | Llanelli |
| Llansawel | Penderyn | Rhayader |
| Tenby | Talley | Ystalyfera |
| Carmel |
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 confirmed that there is 1 digital self help, in the Carmel transmitter group - Cwmere.
For further information about self helps please visit the Ofcom website.
At Carmel, all multiplexes remain within the analogue aerial group C/D.
At Tenby, the BBC A multiplex will be just above the analogue aerial group B. Replacement group E or W antennas may be required to ensure reliable reception of this multiplex.
At all other relay sites, at switchover, all multiplexes will be within the analogue aerial group.
Channel changes at Carmel, Llanelli and Tenby mean that channelised communal systems will need to be reconfigured at DSO1 and DSO2.
A household in parts of south and central Wales is most likely to be watching the Carmel transmitter group. However they could also be watching the Wenvoe, Kilvey Hill, Preseli, Blaenplwyf or Long Mountain transmitter groups.
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