Method for analyzing signal and signal analyzer having function for displaying slot information

A signal analyzing device comprising:

• a measuring section which detects a digital multiplex signal divided into slot units, which is utilized in a mobile communication system, as a signal to be measured, and which stores the detected signal to be measured;
• a display control section which displays, on a screen, a measured waveform of the stored signal to be measured which is detected by the measuring section;
• an analyzing section which detects a slot of a fixed time interval from the stored signal to be measured by the measuring section, and analyzes, in slot units, information relating to the measured waveform of the stored signal to be measured based on the detected slot;
• a storage section which stores the analyzed information relating to the measured waveform of the signal to be measured, as analyzed information of the slot unit;
• a slot marker display control section which displays a slot marker to designate an arbitrary slot, in correspondence with the measured waveform of the signal to be measured displayed on the screen by the display control section;
• and
• a slot information display control section which reads, from the storage section, the analyzed information of the slot unit corresponding to the slot designated by the slot marker displayed on the screen by the slot marker display control section, and which displays the analyzed information of the slot unit in correspondence with the slot marker.