Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to apply radio for his pleasure and profit without going into the special theories and the intricacies of the art (1922)
Lescarboura, Austin C. (Austin Celestin), 1891- · New York, Scientific American publishing company [etc.] · leaf 276
cy system. The distortion due to the Hne is, how-ever, absent. Another important aspect of communication is secrecy.When used as a direct private line of telephonic com-munication, as in the case of leased lines between busi-ness houses in different cities or for press work, wehave in this method a… … 258 RADIO FOR EVERYBODY and very important field in communication at sea, it ob-viously has serious limitations when employed for strictlypersonal and business purposes. While there is no knov^nmeans of communication v^^hich cannot be tapped, yetfrom the nature of the system direct guided-v^ave…
Radio
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