Display the three vertical bar video signal as defined in section 3.2.1.3 of IEC 60107-1, “Methods of measurement on receivers for television broadcast transmissions – Part 1: General conditions – Measurements at radio and video frequencies” Edition 3.0, 1997 (IEC 60107-1 Ed. 3.0, 1997). The three bar image shall be configured using the default image display application.