I am in the process of adding into the site database all the information from the service from the Technical Parameters - ComReg page, so if there are any omissions I should be dealing with these in the next few days.
For power levels, you're clearly using the figures from the spreadsheet, but ComReg have obviously just converted from dBW (as in the Geneva plan) to watts. Perhaps you could round the figures to a more meaningful value?
I see that RTE and TG4 are to set up a DT Multiplex in N.I. This will be very welcome if it works ok. At present we have to pay Sky to receive these channels. It is hard to find any info as to when it will be operating.
Keep us up to date if you can.