Oxford transmitting station

Columns: Frequency | UHF | kW | Operator | System
538.000 MHz | 29 | 10 | Local | DVB-T | 554.000 MHz | 31 | 16.4 | Com7 | DVB-T2 | 602.000 MHz | 37 | 17.1 | Com8 | DVB-T2 | 706.000 MHz | 50 | 50 | SDN | DVB-T | 730.166 MHz | 53+ | 100 | BBC A | DVB-T | 746.000 MHz | 55 | 50 | Arqiva B | DVB-T | 762.000 MHz | 57 | 100 | BBC B | DVB-T2 | 777.833 MHz | 59- | 50 | Arqiva A | DVB-T | 785.833 MHz | 60- | 100 | Digital 3 & 4 | DVB-T

Example questions:
What is the UHF of the operator which operates a multiplex broadcasting from a number of transmitter sites in the United Kingdom including the Oxford transmitting station ? | What operator ( s ) at the Oxford transmitting station use the system that is suited for carrying HDTV signals on the terrestrial TV channel ? | What is the system of the operator at the Oxford transmitting station whose main asset is a network of over 1,000 radio and television transmission sites ? | At the Oxford transmitting station what system is used by the operator who is now wholly owned by ITV plc ?

Answers:
60- | Com7 | DVB-T | DVB-T