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Experimental Polyphase Broadcasting

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1 Author(s)
Loyet, P. ; Collins Radio Company, Cedar Rapids, Iowa.

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.

Published in:

Proceedings of the IRE  (Volume:30 ,  Issue: 5 )