TRANSMISSION SYSTEM AND CONTROL METHOD OF SAME

摘要

A transmission system of an embodiment is provided with an active transmitter, a backup transmitter, and a system controller to integrally control the active transmitter and the backup transmitter. The backup transmitter is provided with a setting table which stores a setting value relating to a frequency and a level of a signal outputted from the active transmitter, a power amplifier to amplify an input signal and output an amplified signal, and a modulator/exciter which converts, based on the setting table, the input signal into a modulation signal of a prescribed broadcast type in which nonlinear distortion by the power amplifier has been compensated. The system controller, at the time of adjusting the output level of the active transmitter, controls the backup transmitter so that content of the setting table of the backup transmitter becomes a setting value corresponding to the adjusted output level.

主权项

1. A transmission system comprising:
an active transmitter; a backup transmitter comprising a setting table which stores a setting value relating to a frequency and a level of a signal outputted from the active transmitter, a power amplifier to amplify an input signal and output an amplified signal, and a modulator/exciter which, based on the setting table, converts the input signal into a modulation signal of a prescribed broadcast type in which nonlinear distortion by the power amplifier has been compensated; and a system controller which integrally controls the active transmitter and the backup transmitter, and at the time of adjusting the output level of the active transmitter, performs control of the backup transmitter so that content of the setting table becomes a setting value corresponding to the output level of the active transmitter adjusted.