Control station device and alarm issue method for control station device

A control station device comprising:

• a wireless machine having an interference determination unit that uses one or multiple methods for a received signal to determine in real time whether interference has occurred;
• a multi-wave simultaneous reception start determination unit that causes received interfering waveform information to be held in a memory and determines whether a plurality of signals have been simultaneously terminated;
• and
• an alarm display unit that issues a first alarm indicating an interference state and a second alarm indicating termination of simultaneous transmission based on information from the interference determination unit and information from the multi-wave simultaneous reception start determination unit, wherein when the alarm display unit detects the start of the simultaneous transmission and issues the first alarm, the transmission of one of two waves is terminated, and the end of the interference is not detected, the alarm display unit identifies the termination of the simultaneous transmission of the two waves and issues the second alarm.