05-11-2016, 01:54 PM
It wasn't co-channel, but to encourage people to fit UHF aerials for TG4 and TV3.
I received that (Maghera in Co.Clare) till 1999 I think when it was changed to Band III only, Analogue Band III closed only in November 2012. There were a few Band I 625 Transmitters, the one closed in 1999 (I think) was 625 from the start of transmission. Only the TX sites near border / east coast used 405, mainly as a political sop to those that had imported UK TVs. (Irish TV started on the evening of 31st December 1961, so the western & South Western 625line might not have been running till later 1962, I don't know. What 405 did exist from the last night of 1961 closed in 1985.
Unfairly people in the West at one stage needed Band I for RTE1, Band III for RTE2 and UHF for the third station, TG4 (TV3 started much later and wasn't carried on most relays as they refused to pay, a violation of their licence that they were never penalised).
TG4 and the later TV3 were UHF Only.
Till the four channel UHF Woodcock Hill (in Co.Clare) was added, Limerick City (the 3rd largest) only had fringe reception from Clare (Maghera) and the Cork / Kerry border (Mullaghanish). Basically in 1960/1961 Radio Eirean picked the highest points that would give maximum coverage with minimum number of transmitters for a single Channel. So reception in the four largest cities (Dublin, Cork, Limerick, Galway) needed large roof top aerials (Dublin already had large masts for BBC & ITV from Wales or NI depending on location!).
Thus Three Rock (Dublin) and Spur Hill (Cork) were added as relays and became full TX sites.
RTE 1 started about 10pm 31st Dec 1961.
In 1978, the Government of Ireland approved the launch of a second public service channel to be operated by RTÉ, RTE2.
TG4, was third channel, launched on 31 October 1996.
TV3 launched on 20 September 1998 becoming the country's first commercial broadcaster.
Hence transfer of Band I RTE1 services to Band III along side RTE2.
Some areas had all four channels on UHF, but many places still had Band III for RTE1 & RTE2 and UHF for TG4 (Ch68 I think for Maghera!) and TV3 till Analogue closedown (nationwide at same instant!). All DTT is on UHF, though the Saorview approval requires that TVs and setbox and recorders have Band III.
There were some VHF relays.
I received that (Maghera in Co.Clare) till 1999 I think when it was changed to Band III only, Analogue Band III closed only in November 2012. There were a few Band I 625 Transmitters, the one closed in 1999 (I think) was 625 from the start of transmission. Only the TX sites near border / east coast used 405, mainly as a political sop to those that had imported UK TVs. (Irish TV started on the evening of 31st December 1961, so the western & South Western 625line might not have been running till later 1962, I don't know. What 405 did exist from the last night of 1961 closed in 1985.
Unfairly people in the West at one stage needed Band I for RTE1, Band III for RTE2 and UHF for the third station, TG4 (TV3 started much later and wasn't carried on most relays as they refused to pay, a violation of their licence that they were never penalised).
TG4 and the later TV3 were UHF Only.
Till the four channel UHF Woodcock Hill (in Co.Clare) was added, Limerick City (the 3rd largest) only had fringe reception from Clare (Maghera) and the Cork / Kerry border (Mullaghanish). Basically in 1960/1961 Radio Eirean picked the highest points that would give maximum coverage with minimum number of transmitters for a single Channel. So reception in the four largest cities (Dublin, Cork, Limerick, Galway) needed large roof top aerials (Dublin already had large masts for BBC & ITV from Wales or NI depending on location!).
Thus Three Rock (Dublin) and Spur Hill (Cork) were added as relays and became full TX sites.
RTE 1 started about 10pm 31st Dec 1961.
In 1978, the Government of Ireland approved the launch of a second public service channel to be operated by RTÉ, RTE2.
TG4, was third channel, launched on 31 October 1996.
TV3 launched on 20 September 1998 becoming the country's first commercial broadcaster.
Hence transfer of Band I RTE1 services to Band III along side RTE2.
Some areas had all four channels on UHF, but many places still had Band III for RTE1 & RTE2 and UHF for TG4 (Ch68 I think for Maghera!) and TV3 till Analogue closedown (nationwide at same instant!). All DTT is on UHF, though the Saorview approval requires that TVs and setbox and recorders have Band III.
There were some VHF relays.
