In-vehicle radio device and service channel selection candidate providing method

A service channel selection candidate providing method comprising:

• deriving preference information of a user based on service channel selection history of the user;
• calculating information indicating a size of a reception area for each of a plurality of services that are selectable by radio signals received by an antenna;
• extracting one or more services recommended from the plurality of services that are selectable by the radio signals received by the antenna based on the preference information and the information indicating the size of the reception area;
• and
• displaying the one or more extracted services on a screen.

A tangible computer readable storage medium that stores a computer program, the computer program, when executed by a processor, causing a computer apparatus to perform a process comprising:

• deriving preference information of a user based on service channel selection history of the user;
• calculating information indicating a size of a reception area for each of a plurality of services that are selectable by the radio signals received by an antenna;
• extracting one or more services recommended from the plurality of services that are selectable by the radio signals received by the antenna, based on the preference information and the information indicating the size of the reception area;
• and
• displaying the one or more extracted services on a screen.