Abstract: According to an embodiment, a satellite communication system according to an embodiment includes an outdoor device installed outdoors, an indoor device installed indoors, and an electronic device. The outdoor device has an antenna to transmit/receive wireless radio signals to/from a communication satellite. The indoor device transmits a reception level of the wireless radio signals which are received via the antenna. The electronic device receives the reception level from the indoor device and displays, on a display, a guiding screen to identify an installation position and an installation direction of the antenna in such a way that a synchronization signal based on the received wireless radio signals is confirmed.