A study of wireless telegraphy and wireless telephony (1915)
Eleazarian, Aram Movses · leaf 110
the pipes of water suprlyare satisfactory in small stations. where this is lacking, anetting or network of wires, preferably copper, may be buriedat a short depth below the surface of the earth. This may besupplemented by metallic pipes driven to considerable depths intothe earth, and also by wire… … 52. IX. WIRELESS TELEPHOHY. Radiotelephony, or wireless telephony as it is commonlycalled, consists in transmission of articulate speech over longdistances without wires. Electromagnetic waves briefly discussedpreviously are made use of in this connection. The success inwireless telephony consists…
Telephone systems · Radio · Telegraph, Wireless · Theses
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