| 摘要 |
A radio communicator including a first antenna configured to emit radio signal as a first linear polarized wave; a second antenna arranged perpendicular to the first antenna and configured to emit radio signal as a second linear polarized wave; a receiver configured to monitor a radio wave condition in the air; a transmitter configured to convert transmission data to a first radio signal and a second radio signal with a phase orthogonal to the phase of the first radio signal, and to transmit the first radio signal and the second radio signal through the first antenna and the second antenna; and a controller configured to make judgment of the radio wave condition monitored by the receiver, to direct the transmitter to transmit the first radio signal through the first antenna and to transmit the second radio signal through the second antenna when the result of the judgment is first condition, and to direct the transmitter to transmit an addition signal which is an addition of the first radio signal and the second radio signal through the first antenna when the result of the judgment is the second condition.
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