The measurement of time that the transmitter is on during each cycle describes which term?

The correct term to describe the measurement of time that the transmitter is on during each cycle is Pulse Width (PW). Pulse Width refers specifically to the duration of the individual pulse transmitted, which indicates how long the transmitter emits a signal before turning off. This is a critical parameter in electronic warfare and radar systems, as it affects the resolution, range, and overall effectiveness of the system.

Pulse Repetition Frequency (PRF) refers to how many pulses are transmitted per second and does not measure the duration of a single pulse. Pulse Repetition Interval (PRI) is the time between the start of one pulse to the start of the next pulse, which includes both the pulse width and the time the transmitter is off. Rest time is not a standard term related to pulse measurements in this context. Each of these alternative terms describes different aspects of pulse transmission but does not specifically measure the duration of the pulse itself, which is definitively characterized by Pulse Width.