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Packet Radio, including: Morse Code, Samuel Morse, Q Code, Sos, Cqd, Telegraph Key, Alfred Vail, Z Code, Cq (call), 500 Khz, Signal Lamp, American … Code Abbreviations, Instructograph, Psk31

Hephaestus Books represents a new publishing paradigm, allowing disparate content sources to be curated into cohesive, relevant, and informative books. To date, this content has been curated from Wikipedia articles and images under Creative Commons licensing, although as Hephaestus Books continues to increase in scope and dimension, more licensed and public domain content is being added. We believe books such as this represent a new and exciting lexicon in the sharing of human knowledge. This

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Quantized Radio Modulation Modes, including: Orthogonal Frequency-division Multiplexing, Radioteletype, Automatic Link Establishment, Direct-sequence … Burst Transmission, Phase-shift Keying, Psk31

Hephaestus Books represents a new publishing paradigm, allowing disparate content sources to be curated into cohesive, relevant, and informative books. To date, this content has been curated from Wikipedia articles and images under Creative Commons licensing, although as Hephaestus Books continues to increase in scope and dimension, more licensed and public domain content is being added. We believe books such as this represent a new and exciting lexicon in the sharing of human knowledge. This

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