👉 In the context of signal processing and communication, "signalled" refers to a message or signal that has been transmitted from one location to another. This could be an electronic signal such as a radio signal, a telephone call, or even a physical signal like a light source. When signals are sent over a network or other medium, they may be accompanied by a "signalled" signal indicating where the signal originated and when it was received. For example, if a radio signal is transmitted from one
