What indicates the delay between a control operator action and the corresponding change in the transmitted signal?

Latency refers to the time delay between an input or command and the resulting output or response in a system. In remote station control or digital communication, latency is the delay between when the operator takes an action (like pressing the PTT or sending a packet) and when the transmitter actually responds. "Jitter" refers to the variation in latency or timing of a signal, not the delay itself. "Hang time" is the duration a repeater continues to transmit after a received signal drops, and "Anti-VOX" is a circuit that prevents a transceiver's speaker output from triggering its own microphone. Therefore, latency is the correct term for this operational delay.