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Radio frequency cavities, or RF cavities, receive RF energy from a klystron and transfer it to electrons as they pass through the cavities on their way around the booster synchrotron and storage ring. Just as in the klystron, RF radiation interacts with electrons, adding energy to increase or maintain their speed.icrowaves are radio waves with a wavelength between about one meter and one millimeter, which are the wavelengths used for radio and television broadcasts as well as radar and microwave ovens.
Troubleshooting the RF Amplifier Stage. Function: Many receivers incorporate a stage of RF amplification ahead of the converter stage. It is the first stage in the signal path. The RF stage receives signals from the antenna, tunes the desired signal, amplifies it, and passes it on to the converter. The RF stage provides several advantages. 1  Increased sensitivity. 2  Increased selectivity. 3  Improved AVC (Automatic Volume Control) action. 4  Elimination of image-frequency response - peculiar to superhetrodyne receivers.