RADIO COMMUNICATION DEVICE HAVING RADIO SIGNAL SCANNING FUNCTION, AND RADIO SIGNAL SCANNING METHOD FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a radio communication device having a radio signal scanning function, and a radio signal scanning method for the radio communication device, capable of securely searching an RTTY signal only.SOLUTION: The radio communication device includes: receiver units 4-8 for receiving each radio signal through an antenna 2; reception frequency adjustment units 12, 15 for adjusting each reception frequency; a reception frequency change unit 15 for giving instruction of changing the reception frequency at a predetermined interval and a predetermined frequency pitch; and a signal detection unit 14 for detecting whether or not a predetermined first signal (mark) and a second signal (mark) different from the first signal are included in the radio signal received in the radio signal receiver unit. When detecting that both the first and second signals are included in the radio signal, the radio communication device stops to change the reception frequency.SELECTED DRAWING: Figure 1