Which of the following is an example of remote control as defined in Part 97?

In Part 97, 'remote control' is defined as the operation of an amateur station where the control operator is at a control point located elsewhere than at the station transmitter, connected via a control link. Operating a station over the internet perfectly fits this definition, as the internet serves as the control link connecting the operator to the distant radio equipment. Controlling a model aircraft or boat is regulated under a different set of rules called 'telecommand of a model craft', which is not the same as remotely controlling an actual amateur radio station. An SDR (Software Defined Radio) is just a type of radio architecture that can be operated locally, and EME (Earth-Moon-Earth) is a mode of radio wave propagation, not a control method.