1-9Figure 1-6.—Duty cycle.Since the duty cycle of a radar is usually known, the most common formula for average power isexpressed as:Transposing the above formula gives us a common formula for peak power:Peak power must be calculated more often than average power. This is because, as previouslymentioned, most measurement instruments measure average power directly. An example is shown below:Where:Before figuring Pp, you must figure duty cycle as follows:Now that you have duty cycle, Pp may be calculated as follows: