RF Voltage-controlled Attenuator是什么意思

用法例句

Improving measurement accuracy of low level signal is studied using RF attenuation,resolution bandwidth,video bandwidth,and video average.

研究了利用频谱仪射频衰减、分辨带宽、视频带宽和视频平均的方法,提高和改善低电平信号的测量精度。