DocumentCode
1201708
Title
Experimental Polyphase Broadcasting
Author
Loyet, Paul
Author_Institution
Collins Radio Company, Cedar Rapids, Iowa.
Volume
30
Issue
5
fYear
1942
fDate
5/1/1942 12:00:00 AM
Firstpage
213
Lastpage
222
Abstract
An experimental installation of polyphase broadcasting is described using 1000 watts carrier power on a frequency of 1000 kilocycles. Fidelity measurements made of the modulated field intensity radiated from this installation indicate that comparable performance to other present-day amplitude-modulated broadcast transmitting equipment can be obtained readily. It is demonstrated that transmitting equipment of this type need only have a peak power capability of the output tubes approximately 1½ times carrier power.
Keywords
Amplitude modulation; Electron tubes; Heating; Intensity modulation; Phase modulation; Radio broadcasting; Radio frequency; Radio transmitters; Transmitting antennas; Vacuum systems;
fLanguage
English
Journal_Title
Proceedings of the IRE
Publisher
ieee
ISSN
0096-8390
Type
jour
DOI
10.1109/JRPROC.1942.234665
Filename
1694478
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