A portable radiographic image capture device configured to be carried between at least two locations (R1, R2), wherein similar image capture controllers are provided in each location (R1, R2) and a communication base station for wireless communication is provided at each of the at least two locations (R1, R2) for each of the image capture controllers, the portable radiographic image capture device comprising: an image data generating means that generates radiographic image data from irradiated radiation; a wired communication means that comprises a connecting terminal , and is adapted to perform wired communication with an image capture controller of a first location (R1) that is wire-connected to the connecting terminal ; a wireless communication means that is adapted to perform wireless communication with a communication base station ; a storing means that stores first wireless communication configuration data related to a first communication base station of the first location (R1) with which the wireless communication means performs wireless communication; characterized in that the portable radiographic image capture device comprises a detection unit that is adapted to detect that an image capture controller of a carried location (R2) is wire-connected to the connection terminal; and an update means that, when the detection unit detects that the image capture controller of the carried location (R2) is wire-connected to the connecting terminal , acquires from the image capture controller of the carried location (R2) second wireless communication configuration data related to a second communication base station which is provided in the carried location (R2) for that image capture controller to perform wireless communication, and rewrites the wireless communication configuration data held in the storing means with the acquired second wireless communication configuration data. an image data generating means that generates radiographic image data from irradiated radiation; a wired communication means that comprises a connecting terminal , and is adapted to perform wired communication with an image capture controller of a first location (R1) that is wire-connected to the connecting terminal ; a wireless communication means that is adapted to perform wireless communication with a communication base station ; a storing means that stores first wireless communication configuration data related to a first communication base station of the first location (R1) with which the wireless communication means performs wireless communication; characterized in that the portable radiographic image capture device comprises a detection unit that is adapted to detect that an image capture controller of a carried location (R2) is wire-connected to the connection terminal; and an update means that, when the detection unit detects that the image capture controller of the carried location (R2) is wire-connected to the connecting terminal , acquires from the image capture controller of the carried location (R2) second wireless communication configuration data related to a second communication base station which is provided in the carried location (R2) for that image capture controller to perform wireless communication, and rewrites the wireless communication configuration data held in the storing means with the acquired second wireless communication configuration data. <EOS>