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Two-carrier command modulation systemTwo carriers transmit two high-power signals from single transmitter, each phase-modulated by subcarrier which, in turn, is modulated by data bits; switching between two carriers is alternated at high rate. Resulting composite signal is multiplied up to desired frequency and used to drive power amplifier which feeds transmitting antenna.
Document ID
19730000273
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Easterling, M. F.
Date Acquired
August 7, 2013
Publication Date
June 1, 1973
Subject Category
Electronic Systems
Report/Patent Number
NPO-11548
Report Number: NPO-11548
Accession Number
73B10273
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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