硬盘驱动器控制信号发送到前置放大器和前置选择头部硬盘在目前的时刻需要。
HDD sends control signals to the preamp and the preamp selects the head which HDD needs at the current moment.
在发送方向，收发信机向功率放大器提供射频信号，功率放大器根据给定调制类型的增益和斜坡信息对信号进行放大。
In the transmit direction, the transceiver provides RF signals to the power amplifier, which amplifies the signals based on gain and ramp information for a given modulation type.
而且，可以发送增益值，它可用来控制在8-PSK操作期间的收发信机中的可变增益放大器（VGA）。
Furthermore, a gain value may be sent which may be used to control a variable gain amplifier (VGA) within the transceiver during 8-PSK operation.
应用推荐