Here is a video where I walk you through the way to measure the sideband frequencies that are created when using the Bedini RPX. A machine must produce these frequencies in order to hit all the real Rife frequencies or it is not a real Rife machine.
It is possible to input a single frequency that will alter the fundamental frequency in order to hit a specific Rife frequency, but by having a function generator sweep through a broad range, you hit them all automatically without knowing what the exact frequencies are. That means it also will hit frequencies that Rife did not yet know the function of.
This is an experimental test device with no claims given.