Radio receiver and reception frequency setting method used therein, and frequency setting device and frequency setting method

摘要

A spectrum analyzer is configured to display, on a display, reception signal intensity of each of multiple frequencies. A smoothing unit is configured to smooth signal intensity data of each of the multiple frequencies to produce smoothed data. A peak frequency detection unit is configured to detect, as a peak frequency, a frequency at a position indicating a maximum value in the smoothed data closest to a contact position that a touch sensor detects. A reception frequency determination unit is configured to determine a reception frequency of a radio wave that a receiver for a voice call receives based on the peak frequency.

主权项

1. A radio receiver comprising:
a spectrum analyzer configured to receive radio waves of multiple frequencies in a predetermined frequency band and measure reception signal intensity of each of the multiple frequencies so as to display the reception signal intensity on a display; a touch sensor placed on the display; a smoothing unit configured to smooth signal intensity data indicating the reception signal intensity of each of the multiple frequencies to produce smoothed data; a peak frequency detection unit configured to detect, as a peak frequency, a frequency at a position indicating a maximum value in the smoothed data closest to a contact position that the touch sensor detects; a receiver for a voice call configured to receive a signal of a frequency used for a voice call; and a reception frequency determination unit configured to determine, based on the peak frequency, a reception frequency of a radio wave that the receiver for a voice call receives.