NDLI: Radio Transmission Measurements

Content Provider	IEEE Xplore Digital Library
Author	Bown, R. Englund, C.R. Friis, H.T.
Copyright Year	1913
Abstract	The paper divides naturally into three sections. The first section briefly analyses the radio transmission circuit into (a) the sending or radiating portion, (b) the transmitting portion consisting of the ether path thru which the radiated waves travel, and (c) the receiving portion. The relation of these from the standpoint of the radio transmission engineer is discussed, pointing out the need of quantitative data as to electric field strengths of waves and of radio noise conditions to allow of rational design of radio systems. The second section is devoted to descriptions of apparatus which has been developed for measuring electric field strengths of radio waves, its theory and method of use. Illustrative data are given showing useful practical results already obtained at both short and long wave lengths. The third section deals with the measurement of radio noise. A useful method is described and is illustrated by examples of data from recent transatlantic telephone tests.
Starting Page	115
Ending Page	152
Page Count	38
File Size	9273067
File Format	PDF
ISSN	07315996
Volume Number	11
Issue Number	2
Language	English
Publisher Date	1923-04-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transmitting antennas Electric variables measurement Circuit analysis Receiving antennas Propagation losses Telephony Telegraphy Art Noise measurement Circuit noise
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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On the Interpretation of Early Transmission Experiments by Commandant Tissot and Their Application to the Verification of a Fundamental Formula in Radio Transmission

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Digest of United States Patents Relating to Radio Telegraphy and Telephony: Issued June 21, 1921-August 16, 1921

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