I sold the SkySensor 5800 unit on Mercari, but I found the instruction manual, so I'm offering it. The manual includes not only receiver instructions but also technical explanations about radio waves, making it a valuable resource, I think. Collectors, how about it? SkySensor 5800 instruction manual, supporting FM/AM/SW reception, 23 pages, in Japanese. - Model Name: SkySensor 5800 - Product Type: Instruction Manual - Language: Japanese - Features: Supports FM/AM/SW reception - Number of Pages: 23 Thank you for looking.