I have added information to the UK Free TV database to cover the so-called mini-multiplex that will carry three Irish channels, TG4, RTE1 and RTE2 in a very special multiplex from three transmitters in Northern Ireland.

^{Brian Butterworth published on UK Free TV 1st February 2012 at 20:37}

A special service for 80%-90% of households in Northern Ireland will see three Freeview additional channels being available. These will be:

Some homes will be able to receive the directly from the Saorview transmitters in the RoI (see SAORVIEW - Ireland's free digital television service ), and others will, from the date of Wednesday 24th October 2012, have a service provided from three in Northern Ireland.

Brougher Mountain at 2kW on C30 (~~speculativly~~ C30)
Black Mountain at 1kW on C39+ ~~(speculativly C48)~~
Carnmoney Hill 16w on C48 (~~speculativly~~ C48)

Northern Ireland RTE1 RTE2 TG4 minimux transmitters

However, you will not be able to view these services using a -definition Freeview - a Freeview HD box or set will be required. It is not known at this time if the NIMM will carry RTE2 in HD, as per the Saorview service. TG4 and RTE1 are broadcast in standard definition at the moment.

The requirement for a receiver is because the services are being broadcasting in "D-Book Option 11", which uses the DVB-T2 standard ("a new , option 11, is being planned for a in Northern Ireland. Receivers should be able to switch between these automatically", D-Book 7, DTG164 is defined in appendix G as: FFT size 32k, 16QAM modulation, 1/128 guard interval, PP7, FEC 64800). Digital Television - Technical guidance on the availability of TG4 in Northern Ireland after digital switchover says that Option 11 is: DVB-T2 16QAM FEC 1/2.

Update: DVB-T2 16QAM FEC 1/2 provides a bitrate for the multiplex of 12.77Mb/s.

Update: DVB-T2, QPSK modulation, FEC 2/3, 32K carriers, 9.954 Mbit/s.

Help with Freeview, aerials?

How do I get a test card with Freeview	1
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I have been told I would receive too much singal from my Freeview tansmitter as	3
Can my Freeview box receive more than one BBC and ITV region?	4
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In this section

Should the UK close down the TV networks to allow for more mobile broadband?	1
UK Digital switchover ends - Northern Ireland completes on 24th October 2012	2
The last day of analogue television in the UK - goodbye PAL	3
2 days left of analogue television - goodbye teletext	4
3 days of analogue to go - goodbye to NICAM 728	5
Changes to Saorview frequencies and power levels, 24th October 2012	6