A radio communications device has a modulator that modulates each of a number of different carrier signals with the same message. A combiner combines the modulated carrier signals into a single combined output signal. A radio transmitter receives the single combined output signal and in response simultaneously transmits the modulated carrier signals over the air. Other embodiments are also described.
STATEMENT OF GOVERNMENT RIGHTS
This invention was developed under Contract DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.