What type of control is used when the control operator is not at the station location but can indirectly manipulate the operating adjustments of a station?

The type of control used when the control operator is not at the station location but can indirectly manipulate the operating adjustments of a station is referred to as remote control. This means the operator has the capability to operate the station from a different location, providing them the flexibility to manage the station's settings and operations through a form of communication link.

Remote control can involve various technologies, from internet-based control systems to radio links, allowing the operator to adjust parameters like frequency, power levels, and other operational settings from afar. This is particularly useful for amateur radio operators who may wish to manage their stations while away from the physical site.

In contrast, local control refers to situations where the operator is present at the station and can interact with the equipment directly. Automatic control is when a device operates independently without human intervention, and unattended operation typically involves equipment that can run by itself, often with little to no requirement for operator interaction, but still within the same location. Remote control distinguishes itself by the operator's absence from the physical site, which allows for more versatile and dynamic operation of the station.