请问PXB支持射频衰落吗？

是的，PXB可用于淡化RF信号。
它利用N9020A MXA信号分析仪作为PXB的RF输入。
MXA将RF信号数字化并向下转换为基带，并通过数字总线连接将其发送到PXB以实现实时衰落。
值得注意的是，当今市场上的RF推子也在基带上应用衰落，PXB具有可比较的衰落性能.PXB的方法允许测试工程师利用他们现有的MXA进行RF衰落测试，然后将其重新部署用于其他目的。
设置简单，PXB无缝管理自动功率校准。除了RF衰落外，PXB还可用于多通道基带生成和每通道高达512 Msa的信号捕获。
它目前支持20多种校准配置，最高可达4x2 MIMO。
有关更多信息，请访问http://www.agilent.com/find/pxb



     以下为原文

  Yes, the PXB can be used to fade RF signals.  It leverages the N9020A MXA signal analyzer as the RF input to the PXB.  The MXA digitizes and down converts the RF signal to baseband and send it to the PXB for real-time fading via a digital bus connection.  It should be noted that RF faders in the market today also applies fading at baseband and the PXB exhibits comparable fading performance.
The PXB’s approach allows test engineers to leverage their existing MXAs for RF fading test and redeploy them for other purposes afterwards.  The setup is simple with automated power calibration managed seamlessly by the PXB.
In addition to RF fading, the PXB can be used for multi-channel baseband generation and signal capture up to 512 Msa per channel.  It currently supports over 20 calibrated configurations, up to 4x2 MIMO.  For more information, please visit http://www.agilent.com/find/pxb