Patent ID: 8638837

Claim:
A radio communication apparatus comprising, an amplifier configured to amplify a signal received via one of multiple channels including a channel where frequency hopping is conducted; a signal strength measurement circuit configured to measure a signal strength of the received signal; a gain value computation unit configured to compute a gain value for the amplifier based on the signal strength measured by the signal strength measurement circuit, wherein the gain value computation unit is configured to use values specific to the respective channels as coefficients of a function to compute the gain value; a transmission unit configured to transmit a baseband signal in consecutively changed frequency bands; an attenuator configured to attenuate the baseband signal to a reference level; an attenuation rate configuration unit configured to set an attenuation rate of the attenuator; and a coefficient determination unit configured to determine the coefficients of each of the multiple channels, wherein the signal strength measurement circuit is configured to measure a signal strength of the baseband signal attenuated by the attenuator as the received signal, and the coefficient determination unit is configured to determine the coefficients suitable for each of the frequency bands of the channels based on the signal strength of the baseband signal attenuated by the attenuator and the reference level.