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Radio-Electronic Equipment in Civil Aviation [E-Book] : Construction and Maintenance /
Table of Contents: ... signals of frequency and double (two-channel) frequency telegraphy -- Chapter 5. Private paths for receiving signals of phase and relative phase telegraphy -- Chapter 6. Private paths for receiving signals of amplitude telegraphy -- Chapter 7. Digital radio...

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The soft edge : a natural history and future of the information revolution [E-Book] /
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Operational calculus /
Book
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Data transmission and data processing dictionary : a compilation of terminology in the fields of data processing, telephony, telegraphy, facsimile, and data transmission /
Book
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Lehrbuch der Physik. 4, 2. Elektrizität und Magnetismus Technische Anwendungen der Elektrizitätslehre (elektrische Maschinen, Kraftübertragung, Telegraphie /
Book