Transmission device, reception device, repeating device, frequency list transmitting device, transmission system, and transmission/reception system

A reception device comprising:

• a reception means for receiving a digital modulated wave to which source information as information on the digital modulated wave is added and demodulating the digital modulated wave into a video/sound signal and the source information;
• a speaker for outputting sound;
• a display for projecting video;
• and
• a control means for receiving the video/sound signal and the source information from the reception means, and outputting the sound signal to the speaker, while outputting a signal indicating video on the basis of the source information and the video signal from the reception means to the display.

A transmission reception system comprising:

• a frequency list sending device for sending a list of frequencies that are judged to be unlikely to cause mutually detrimental disturbance between themselves and the other users who are allowed to use a TV broadcast frequency spectrum by a public institution;
• a transmission device for receiving the frequency list and transmitting a digital modulated wave using frequency in the frequency list;
• and
• a reception device for receiving the digital modulated wave transmitted from the transmission device, wherein
• the transmission device does not transmit the digital modulated wave when the frequency list is not updated within a previously determined period.