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サマリー
あらすじ・解説
Brian, Jim, and Dacia discuss ham radios, cellular and satellite phones, 'walkie talkies, whistles, signal fires, flares, and other ways of communicating in an emergency situation.
Brian, Jim, and Dacia discuss ham radios, cellular and satellite phones, 'walkie talkies, whistles, signal fires, flares, and other ways of communicating in an emergency situation.