Divis transmitting station

Columns: Frequency | UHF | kW | Operator | System
474.166 MHz | 21+ | 100 | PSB2 ( D3 & 4 ) | DVB-T | 490.000 MHz | 23 | 50 | COM4 ( SDN ) | DVB-T | 498.000 MHz | 24 | 100 | PSB3 ( BBC B ) | DVB-T2 | 514.000 MHz | 26 | 50 | COM5 ( ARQ A ) | DVB-T | 522.000 MHz | 27 | 100 | PSB1 ( BBC A ) | DVB-T | 546.000 MHz | 30 ( was 29 ) | 50 | COM6 ( ARQ B ) | DVB-T | 594.000 MHz | 36 ( Was 30 ) | 19 | LTVmux | DVB-T | 690.000 MHz | 48 ( From Sept 2019 ) | 0.01 | NIMM ( RTE ) | DVB-T | 714.000 MHz | 51 ( Was 33 ) | 12.4 | COM7 ( ARQ C ) | DVB-T2 | 786.000 MHz | 60 ( Was 34 ) | 12.66 | COM8 ( ARQ D ) | DVB-T2

Example questions:
What is the UHF of the transmitter in Divis transmitting station in which the operator has its headquarters at Broadcasting House in Westminster ? | What is the kW of the system known as Digital Video Broadcasting - Terrestrial that has operations in Divis transmitting station ? | What is the system of the transmitter in Divis transmitting station in which the operator is wholly owned by ITV plc ? | What is the kW of the system known for using OFDM modulation with concatenated channel coding and interleaving in the Divis transmitting station ?

Answers:
24 | 100 | DVB-T | 100