Publications

A new long-haul coaxial cable system, L-4, has been developed to transmit 3600 voice circuits on a pair of %-inch diameter coaxial cables using frequency division multiplexing.

Copyright, 1953, American Telephone and Telegraph Company The L3 Coaxial System Foreword The articles in this issue are devoted to different phases of the development of a new system for the transm

THE L3 SYSTEM -- AMPLIFIERS 881 greater precision than we can economically control the individual.

The application of quality control procedures, in addition to conventional maximum and minimum limits, is an important factor in the manufacture of components for the L3 carrier repeaters.

Equalization is the process of correcting system gain and delay deviations sufficiently to permit the satisfactory transmission of signals.

Economic solution of the equalization problem in the L3 system required limitation of the excursions of the transmission characteristics from the design center.

The L3 coaxial carrier system is a new broadband transmission system capable of transmitting either 1,860 telephone message channels or 000 message channels and a 4.2-megacycle broadcast television

The main features of the L3 coaxial cable transmission system have been described in a companion paper.1 This paper describes the television transmitting and receiving terminal equipment of the L3

Toroidal cores of magnetic material having a rectangular hysteresis loop are widely used as memory and switching elements in logic circuitry.

Hydrodynamic turbulence in 3D is characterized by a non-linear transfer of energy from large to small scales.