Display system

A display system that displays, on a display unit, recommended frequencies recommended for use in a wireless device configured to carny out transmission and reception of data by switching between hopping frequencies in a predetermined frequency band, the display system comprising:

• a measurement unit configured to measure, within a set time period set in advance, frequencies and power levels of radio waves propagating around a periphery of the wireless device;
• and
• a control unit configured to determine frequencies of the radio waves having the power levels greater than or equal to the power threshold value, as being non-recommended frequencies, determines frequencies that are included within the frequency band and that are other than the non-recommended frequencies, as being the recommended frequencies, and to cause the display unit to display the non-recommended frequencies and the recommended frequencies in different display forms,
• wherein the measurement unit periodically performs a process of measuring the frequencies and the power levels of the radio waves within the set time period;
• and
• the control unit causes the display unit to display at least one of:
• a degree of usage of the frequencies of the radio waves having the power levels greater than or equal to the power threshold value, and
• a degree of usage of the frequencies of the radio waves having the power levels less than the power threshold value.