价出售：HG813B|HG-813B德国HG813BC信号发生器 ================================================ HP8341A，HP 8341A信号发生器简介： 带宽范围：10MHz-20GHz 频率分辨率:1Hz-4Hz 调制振幅:脉冲> 80 - Amplitude Output range: +10dBm to -20dBm Output level resolution: 0.1dB Internal level accuracy: ±0.9dB.