The Transmission Characteristics of Open-Wire Telephone Lines
- 1 October 1930
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers
- Vol. 49 (4), 1524-1535
- https://doi.org/10.1109/T-AIEE.1930.5055695
Abstract
Values of the primary transmission constants R, L, G, and C for open-wire telephone lines are presented, and the factors which affect these constants in practise are discussed. Consideration is then given to the constants which are of principal interest in telephone work, namely, the attenuation, the characteristic impedance, the phase constant, and the velocity of propagation. Data regarding these characteristics are given for the frequency range from 0 to 50,000 cycles.Keywords
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