. 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 . classes, a minimum of interference results between trans-mitters. One can spend an entire evening listening to aradio-phone broadcasting station with hardly any inter-ference from radio /telegraph stations, thanks to the 360meter wave length reserved for radio-phone service. Another que
. 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 . classes, a minimum of interference results between trans-mitters. One can spend an entire evening listening to aradio-phone broadcasting station with hardly any inter-ference from radio /telegraph stations, thanks to the 360meter wave length reserved for radio-phone service. Another question which rather confuses the beginnerin radio is whether there is a limit to the number ofreceiving stations that can listen in to a transmitter. Asa matter of fact, there is no limit—at least in number of receiving stations can be operating at the RADIO FOR EVERYBODY 9 same time, picking up the signals or music from onetransmitter. Furthermore, the transmitting operator can-not tell how many receiving sets are listening to what heis sending. He simply sends, and there is no telling howfar his signals are going or how many persons are listen-ing in. Damped and Undamped Waves—Which? The waves dealt with so far in the pool of water arehighly damped. Which means, in plain language, that. The difference between damped or discontinuous waves, and undamped or continuous Avaves in water. Dropping a pebble into water causes damped waves, while using a paddle steadily produces continuous waves. they die down quickly. The pebble is dropped in thepool of water, and the waves created reach but a shortdistance away before they have virtually order to keep up a disturbance in the water, it isnecessary to drop one pebble after another, so as tocreate a steady supply of waves, represented by groups ortrains. Each group or train soon dies down, and is fol-lowed by the next one, and so on. In radio, we have the same condition when the usualspark transmitter is
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Keywords: ., bookcentury1900, bookdecade1920, bookidradioforever, bookyear1922
