The transmission unit and telephone transmission reference systems

1 June 1924

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of the A.I.E.E.

Vol. 43 (6) , 504-507
https://doi.org/10.1109/jaiee.1924.6538339

Abstract

Consideration is given to the method of determining and expressing the transmission efficiencies of telephone circuits and apparatus, and of the desirable qualifications for a unit in which to express these efficiencies. The “transmission unit” described in this paper has been selected as being much more suitable for this purpose under present conditions than the “mile of standard cable” which has been generally used in the past.

Keywords

TELEPHONE
CIRCUITS
APPARATUS
MILE
TRANSMISSION UNIT
QUALIFICATIONS
REFERENCE SYSTEMS
SYSTEMS CONSIDERATION
UNIT&RDQUO
CABLE&RDQUO