PLTS中DUT不同的校准问题

我有一台N5242A，正在运行PLTS2013，用于微探测器设置。
在过去，我使用校准基板进行微探测，并使用未知直通校准来获得单个微探针的S参数。
然后，我在我的电缆末端进行测量并测量我的DUT。
之后，我将在PLTS中将微探针部分嵌入到PLTS中。
我知道我应该为每个微探针获得参数，但我现在只是放弃了这个精度。
为了完全准确，我意识到我应该使用我的校准基板并执行完整的4端口校准。
这里的问题是，在我完成DUT测量设置并准备就绪之前，我并不总是确切地知道我将使用哪种探头间距和信号接地配置。
我通常测量裸产品板，我的接触点的位置和音调可能会有所不同。
设置探头位置可能需要几个小时的工作时间。
我讨厌做出校准后，我不想把它拆掉，但这几乎是我必须要做的，以确保我有正确的探针与正确的端口相匹配。
我在PLTS中没有使用过很多校准功能。
我知道当我开始新测量时，我会选择校准，使用存储的校准或不使用校准。
我假设在使用时没有选择校准，事后可以通过某种方式将校准应用于待测文件。
在这种情况下，我想最初在我的电缆末端使用校准，但稍后返回并在探头尖端处应用校准来代替电缆末端校准。
PLTS有可能吗？
谢谢，迈克尔



     以下为原文

  I have an N5242A and am runing PLTS2013 used on a microprobing setup.  In the past I have used the calibration substrate for my microprobes and calibration with an unknown thru to get the S-parameters for a single microprobe.  Then, I calbrate at my cable ends and measure my DUT.  Later, I will de-embed the microprobe part of the response in PLTS.  I know I should really get parameters for each microprobe, but I am just giving up that accuracy for now.

To be completely accurate I realize I should use my calibration substrate and perform a full 4-port calibration.  The catch here is that I don't always know exactly which probe pitches and signal-ground configuration I will use until I have the full DUT measurement set up and ready to go.  I typically measure bare product boards, and my contact points can vary in placement and pitch quite a bit.  Setting up the probe positions can be a couple hour job.  I hate to tear it down as soon as I have it figured out to do the calibration, but that's pretty much what I would have to do to make sure I have the right probe matched with the right port.

There are a lot of calibration functions that I haven't used in PLTS.  I know when I start a new measurement, I get the options to calibrate, use a stored calibration, or use no calibration.  I assume that when using no calibration is selected that there is some way to apply a calibration to the dut file after the fact.  In this case I'd like to initially use the calibration at my cable ends, but later go back and apply a calibration at the probe tips in place of the cable end calibration.  Is that possible in PLTS?

Thanks,
Michael