| 摘要 |
A digital power level control is presented for an RF broadcast transmitter. This control includes an RF high power amplifier that receives an RF signal from an exciter and provides therefrom an amplified RF output. An adjustable attenuator is interposed between the exciter and the power amplifier for adjusting the level of the RF signal. An RF controller adjusts the attenuator. A high power amplifier controller controls the high power amplifier. A communication bus interconnects the controller.
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