. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. 96 BELL SYSTEM TECHNICAL JOURNAL dependent, however, since, for each value of F, Fi for instance, there exist k relations of the form (16) which the corresponding set of constants Aw, A21, â â â Aki must satisfy. The remaining 2k inde- pendent constants can then be determined from a knowledge of the conditions at the terminals of the conductors. It is important to observe that the transmission characteristics of a system of coaxial conductors are influenced to a great
. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. 96 BELL SYSTEM TECHNICAL JOURNAL dependent, however, since, for each value of F, Fi for instance, there exist k relations of the form (16) which the corresponding set of constants Aw, A21, â â â Aki must satisfy. The remaining 2k inde- pendent constants can then be determined from a knowledge of the conditions at the terminals of the conductors. It is important to observe that the transmission characteristics of a system of coaxial conductors are influenced to a great extent by the manner of connecting the various members of the system. Anomalies in the impedance of a complicated network such as a submarine cable with several conducting sheaths in the return path, may often be traced to lack of proper connections between the sheaths, or to faulty joints. Ill The submarine cable armored with a continuous coaxial sheath, as shown in Fig. 2, is a particular case of the foregoing, and one which presents a clearer idea of the physical significance of the various steps in the general theory. There are only two groups of conductors, the Copper Conductor - Insulator. Fig. 2 first consisting of the core conductor, and the second comprising the iron sheath and the sea water, the two groups being separated by the insulating material and the layer of jute. Consequently, there is only one mode of propagation, and the analysis is considerably sim- plified. The jute is assumed to contain sufficient sea water so that although it conducts practically no current axially, it maintains equality of potential between the outer surface of the gutta percha and the inner. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original American Telephone and Telegraph Company. [Short Hills, N. J. , etc. , Amer
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
