This control is used to adjust the calibration of the SWR meter while in SWR CAL mode. Turning this control fully CCW (Counter Clock Wise) until it clicks and dims the display backlighting是什么意思_This control is used to adjust the calibration of the SWR meter while in SWR CAL mode. Turning this control fully CCW (Counter Clock Wise) until it clicks and dims the display backlighting在线翻译_英语_读音_用法_例句