. 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 . gduration, it being unnecessary to do any elevating of the key as this is pro-vided for by thespring compressionunder the key. The beginnershould first learn torecognize the lettersof the Continental orInternational code in-stantly when heard,without conscious ef-fort. In order to ac-qu
. 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 . gduration, it being unnecessary to do any elevating of the key as this is pro-vided for by thespring compressionunder the key. The beginnershould first learn torecognize the lettersof the Continental orInternational code in-stantly when heard,without conscious ef-fort. In order to ac-quire this knowledgehe should start tosend at a slow rate ofspeed, remembering that a dash is equivalent in durationof time to that taken for making three dots. When opera-ting the key, listen to the sound produced by the buzzer, or,if the practice set has a visual indicator such as a lamp,watch the flash produced by the blinker, as it is called. Ina surprisingly short time smoothness and speed in bothsending and receiving will be developed. In some prac-tice sets a head receiver is worn so that the buzzes areheard in the same manner as though they were receivedfrom a radio telegraph transmitter. Taking the telegraph code, the beginner should startwith the first four letters, mastering them in turn. Thus,. Buzzer practice set employed inlearning the radio code. This littleset is also provided witli a smalllamp which gives visual code signalswhen desired. 168 RADIO FOR EVERYBODY the beginner will note by studying the code chart thatdah de dah deâand not dash dot dash dotâis C, in-stantly, and that dah de de de is B. In other words, helearns what sounds represent each letter, and he does notstop to figure how many dots and dashes he has is left to the mind to perform two functions for eachletter, namely, to think of the symbol and then the will be found that as the code is mastered, the letterswill form in the brain automatically, and when this stageis reached
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Keywords: ., bookcentury1900, bookdecade1920, bookidradioforever, bookyear1922
