{ "item_title" : "Wireless Telephony", "item_author" : [" Ernst Walter Ruhmer", "James Erskine-Murray "], "item_description" : "Wireless Telephony: In Theory and Practice is a book written by Ernst Walter Ruhmer in 1908. The book is a comprehensive guide to the principles and practices of wireless telephony, which was a relatively new technology at the time. The book covers a wide range of topics related to wireless telephony, including the physics of radio waves, the design and construction of wireless telegraph and telephone equipment, and the practical applications of wireless telephony in communication and broadcasting. The book also includes detailed technical information on the various types of wireless telephony equipment, such as transmitters, receivers, and antennas, as well as information on the different methods of wireless communication, such as amplitude modulation and frequency modulation. Overall, Wireless Telephony: In Theory and Practice is an important historical document that provides valuable insights into the development of wireless telephony and its impact on modern communication technology.With An Appendix.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/1/16/584/236/116584236X_b.jpg", "price_data" : { "retail_price" : "43.95", "online_price" : "43.95", "our_price" : "43.95", "club_price" : "43.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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