A duty cycle is defined as the ratio between the pulse duration (τ) and the period (Τ) of the Square waveform, and is purely used in electronics as a description of the waveform produced by a frequency signal.
For example Rife Digital produces a frequency, of say 30Khz, within that frequency is a pulse less than one second, the “Duty Cycle” is the time it takes for the wave to run from its lowest point to the highest point and back again. (0.5 second up and 0.5 second down)
As this occurs on a continuous basis while using the Rife, the user is unaware of this occurring. The Duty cycle is set by the Engineers in the laboratory and cannot be altered from its preset state.
The Duty Cycle a client/patient may be inquiring about would more likely be the program cycle of the Rife which is 10 minutes, this translates into 600 Duty Cycles per frequency. If the Client wants to run 1200 Duty Cycles, he would enter the same frequency twice in a row for example.
Really it is best to converse in “Frequencies” or “Time” which makes an easier to understand platform for most non-technical persons.