Which of the following responsibilities is NOT associated with a radio station's chief engineer?

The role of a chief engineer at a radio station primarily revolves around the technical and operational aspects of broadcasting. This includes overseeing the installation, maintenance, and upgrading of broadcast equipment, which ensures that the station operates efficiently and effectively.

When examining the responsibilities listed, installing broadcast equipment, maintaining the station’s broadcast equipment, and informing staff about new technologies are all directly related to the chief engineer's technical expertise. They are crucial tasks that fall within the engineering domain, focusing on the physical and technical infrastructure of the station.

Conducting on-air interviews, however, is not a responsibility typically associated with a chief engineer. This task is more aligned with radio hosts, producers, or journalists who engage with listeners and guests. Therefore, the chief engineer’s lack of involvement in on-air interviews distinctly sets this option apart as not fitting within the expected duties of this position.