A
radio wave map generator device (200) configured to receive probe information from a probe information
transmitter device mounted in a
moving body and generate a
radio wave map, the
radio wave map generator device including: a receiving unit (201) configured to receive pieces of the probe information each of which contains location information of the
moving body, propagation environment information for the position, and
external communication device identification information; a communication speed calculation unit (206) configured to calculate, based on the pieces of the probe information when the
external communication device for the position is a first
external communication device and a second external
communication device, a first communication speed from first propagation environment information between the
moving body and the first external
communication device, and a second communication speed from second propagation environment information between the moving body and the second external
communication device; a connection probability calculation unit (208) configured to calculate, based on the pieces of the probe information, a first connection probability that is a probability of performing
wireless communication with the first external communication device at the position, and a second connection probability that is a probability of performing
wireless communication with the second external communication device at the position; and a storage unit (204) configured to store the location information, the external communication device identification information, the first communication speed, the second communication speed, the first connection probability, and the second connection probability.