. 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 . phone line, radio again andtelephone line, through all the various circuits withoutappreciable distortion! The first commercial radio and connecting land toll lineis the Santa Catalina Island and California radio link,which was set in operation the latter part of 1920. Radiotelephone se
. 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 . phone line, radio again andtelephone line, through all the various circuits withoutappreciable distortion! The first commercial radio and connecting land toll lineis the Santa Catalina Island and California radio link,which was set in operation the latter part of 1920. Radiotelephone service between Santa Catalina and the main-land to connect up with the Bell system exchanges wasinstalled at the request of the local telephone is one of the great tourist resorts in attracts thousands of visitors daily throughout theyear, who, heretofore, when they left the California main-land, remained completely isolated from the rest of theworld until they returned to the mainland, except for themuch overloaded naval radio telegraph station on theisland. That this radio link, which bridges the 31^-mile gapbetween the island and the mainland, is not in the experi-mental stage may be gathered from the fact that it handleshundreds of messages each day. The large amount of. 56 RADIO FOR EVERYBODY commercial traffic with scarcely any interruption whichthe Avalon-Los Angeles toll circuit has carried since itsinauguration is ample proof of the practicability of tolllines containing radio links, where, due to physical condi-tions, direct-wire connections are impracticable. It is virtually impossible to delve deeply into the intrica-cies of the Avalon-Los Angeles radio link and wire cir-cuit, since it involves the moat elaborate telephone andradio engineering practice extant. Suffice it to state thatthe circuit consists of a little more than one mile of wireline from the Avalon central office to Pebbly Beach, a31^-mile radio link to Long Beach, and 25
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Keywords: ., bookcentury1900, bookdecade1920, bookidradioforever, bookyear1922
