Abstract: A direct conversion receiver configured to down-convert a received RF signal by using a local signal and demodulate the down-converted signal, the direct conversion receiver including: a power detector unit configured to detect a signal strength of the down-converted signal; a power determinator unit configured to determine whether the signal strength detected by the power detector unit is equal to or smaller than a previously set threshold value; and a local oscillator circuit configured to output, as the local signal, a first local signal when the power determinator unit determines that the signal strength is equal to or smaller than the threshold value, and output, as the local signal, a second local signal set to a frequency obtained by adding a previously set offset frequency to a frequency of the first local signal when the power determinator unit determines that the signal strength is larger than the threshold value.

Abstract: A direct conversion receiver configured to down-convert a received RF signal by using a local signal and demodulate the down-converted signal, the direct conversion receiver including: a power detector unit configured to detect a signal strength of the down-converted signal; a power determinator unit configured to determine whether the signal strength detected by the power detector unit is equal to or smaller than a previously set threshold value; and a local oscillator circuit configured to output, as the local signal, a first local signal when the power determinator unit determines that the signal strength is equal to or smaller than the threshold value, and output, as the local signal, a second local signal set to a frequency obtained by adding a previously set offset frequency to a frequency of the first local signal when the power determinator unit determines that the signal strength is larger than the threshold value.