At the frequency of 0kHz, the - dB beamwidth of the vertical beam of the whole head is approximately ., its major axis elevated 0 above the rostrum plane;
At the frequency of 0kHz, the - dB beamwidth of the vertical beam of the whole head is approximately ., its major axis elevated 0 above the rostrum plane;
在0kHz时整体头垂直波束— dB束宽为.°,主轴相对于吻平面有0°仰角;