I propose with the permission of the Ceann Comhairle to take Questions Nos. 3 and 4 together. Two UHF transmitters are being established at Cairn Hill, County Longford, and two at Three Rock Mountain, County Dublin, to provide for reception of RTE 2 and to improve reception of the existing RTE television service. All four are capable of giving rise to interference with reception of British television service in parts of this country.
Full power test transmissions commenced from the Cairn Hill transmitters in mid-January, 1978. The existing RTE TV service is being broadcast from one of the Cairn Hill transmitters since 3 April 1978 and the other transmitter is carrying trade test transmissions. RTE have advised my Department that these transmitters have not affected reception of British signals in Wexford and the south-east of the country in general and that interference problems in the service area of the transmitters are being solved by the use of filters specially designed for this purpose by RTE and available to the television trade at a cost of approximately £10.
RTE say that the level of interference with multi-channel TV reception in the Carlow area is not such as to wipe out reception of the weak British signals and that the quality of reception from Presely varies greatly throughout the town. They consider that the most effective solution to the problem is the installation of a cable system which would also have the effect of providing reception of British services in sections of the town where reception is either of poor quality or non-existent.
RTE expect that the Three Rock Mountain transmitters will commence testing in August 1978. They say that corrective action to be taken by the cable television operators concerned will eliminate any interference that may arise on cable systems. Viewers not connected to cable systems may be affected but they will be able to use filters designed by RTE similar to those being used in the service area of the Cairn Hill transmitters to resolve the problem. There is no statutory provision under which I could offset the cost to viewers who adjust their sets.
RTE are not in a position to say how many sets will need adjustment as the strength of British signals is not of uniform quality in every area. Viewers receiving a good quality signal are less likely to suffer an interference problem than viewers receiving a poor quality signal. Consequently it is not possible to give an estimate of the total sum of money involved.
I cannot give a guarantee that there will be no disimprovement in the quality of multi-channel reception in the areas concerned.