Which steps are involved in transmitting a signal using electromagnetic radiation? (Select two)

Transmitting a signal using electromagnetic radiation involves several key steps, among which encoding and modulation are fundamental.

Encoding is the process of transforming information into a format suitable for transmission. This ensures that the data can be effectively sent over a medium and interpreted correctly upon reception. For example, encoding converts digital data into a form that can be handled by the modulation process.

Modulation is the technique used to impose the encoded signal onto a carrier wave. This allows the signal to be transmitted over long distances without significant loss or interference. By varying the properties of the carrier wave—such as its amplitude, frequency, or phase—modulation facilitates the effective transmission of data over electromagnetic waves.

These two processes are essential in preparing a signal for propagation through space, enabling it to travel from the transmitter to the receiver effectively.