Transmission maintenance of telephone systems
作者:
P.E.Erikson,
R.A.Mack,
期刊:
Journal of the Institution of Electrical Engineers
(IET Available online 1924)
卷期:
Volume 62,
issue 332
页码: 653-679
年代: 1924
DOI:10.1049/jiee-1.1924.0092
出版商: IEE
数据来源: IET
摘要:
This paper is divided into two parts. The first, part deals with the broad aspects of modern telephone transmission maintenance, the economic justification for good maintenance, and the general lines upon which it should be carried out. The second part gives the theoretical considerations leading up to the development of a series of testing instruments, by means of which transmission losses in any part of the telephone system can easily be measured. This part also contains brief descriptions of the instruments and their use.
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