A radio frequency circuit includes a radio frequency signal source which
produces a radio frequency signal, a power amplifier which power
amplifies the radio frequency signal from the radio frequency signal
source, and a control unit which controls an output power of the power
amplifier. Particularly, the control unit is configured to hold control
data defining a relationship among an output power, a gain, and an
operation bias point of the power amplifier and adjust the operation bias
point of the power amplifier based on the control data such that the
output power of the power amplifier is set into a level designated by an
external power designating instruction.