引用: Topcbpcba 发表于 2019-2-13 18:49
如果它让你感觉更好，即使在最现代的VNA中，你仍然需要一些远程编程干预来将2端口校准转换为1端口校正（这样就不需要反向扫描）。
但你绝对正确;
当选定的校准中包含更高阶的误差项时，告诉分析仪对测量应用低阶校正应该是明智之举。
> {quote：title = daras写道：} {quote}>如果它让你感觉更好，即使在最现代的VNA中，你还需要一些远程编程干预才能将2端口校准变成1-
端口校正（因此不需要反向扫描）。
我想这确实让我觉得好一点。
事实上，在Joel的回答之后，我很想写一些类似+“我假设如果我有一个后来的VNA，这样就没有问题。”+我真的认为这将是非常基本的东西。
我不敢相信我是第一个不受欢迎的人，1端口测量需要两倍的时间，只是因为我做了2端口校准。
>但你绝对正确;
当选定的校准中包含更高阶的误差项时，告诉分析仪对测量应用低阶校正应该是明智之举。
也许您可以考虑将其包括在后续仪器的固件更新中 - 当然，8720D固件不可能更新。
我必须承认，我经常让VNA只显示S11，但是根据需要通过GPIB读出所有4个S参数，所以任何这样的改变都应该基于用户设置“忽略反向扫描”或“
省略前向扫描“，而不是基于仪器前面板显示的内容。
戴夫
以上来自于谷歌翻译
以下为原文
> {quote:title=daras wrote:}{quote}
> if it makes you feel any better, even in the most modern VNA, you still need a little bit of remote programming intervention to turn a 2-port calibration into a 1-port correction (so that the reverse sweep is not required).
I guess it does make me feel a bit better.
In fact I was tempted to write after Joel's response something like
+"I assume if I had a later VNA there would be no problem doing this".+
I really thought it would be something quite basic. I can't believe I'm the first person to be irretated that 1 port measurements are taking twice as long as need be, just because I have done a 2-port calibration.
> but you are absolutely right; it should be a no-brainer to tell the analyzer to apply a lower order correction to a measurement when the selected calibration has a higher order set of error terms in it.
Perhaps it is something you could consider including in firmware updates for later instruments - of course there is no chance of the 8720D firmware being updated.
I must admit, I often have the VNA displaying just S11, but read out all 4 S parameters via GPIB as I need them, so any such change should really be based on the user setting a tick box for "Omit reverse sweep" or "Omit forward sweep", rather than based on what the instrument's front panel is displaying.
Dave
引用: Topcbpcba 发表于 2019-2-13 18:49
如果它让你感觉更好，即使在最现代的VNA中，你仍然需要一些远程编程干预来将2端口校准转换为1端口校正（这样就不需要反向扫描）。
但你绝对正确;
当选定的校准中包含更高阶的误差项时，告诉分析仪对测量应用低阶校正应该是明智之举。
> {quote：title = daras写道：} {quote}>如果它让你感觉更好，即使在最现代的VNA中，你还需要一些远程编程干预才能将2端口校准变成1-
端口校正（因此不需要反向扫描）。
我想这确实让我觉得好一点。
事实上，在Joel的回答之后，我很想写一些类似+“我假设如果我有一个后来的VNA，这样就没有问题。”+我真的认为这将是非常基本的东西。
我不敢相信我是第一个不受欢迎的人，1端口测量需要两倍的时间，只是因为我做了2端口校准。
>但你绝对正确;
当选定的校准中包含更高阶的误差项时，告诉分析仪对测量应用低阶校正应该是明智之举。
也许您可以考虑将其包括在后续仪器的固件更新中 - 当然，8720D固件不可能更新。
我必须承认，我经常让VNA只显示S11，但是根据需要通过GPIB读出所有4个S参数，所以任何这样的改变都应该基于用户设置“忽略反向扫描”或“
省略前向扫描“，而不是基于仪器前面板显示的内容。
戴夫
以上来自于谷歌翻译
以下为原文
> {quote:title=daras wrote:}{quote}
> if it makes you feel any better, even in the most modern VNA, you still need a little bit of remote programming intervention to turn a 2-port calibration into a 1-port correction (so that the reverse sweep is not required).
I guess it does make me feel a bit better.
In fact I was tempted to write after Joel's response something like
+"I assume if I had a later VNA there would be no problem doing this".+
I really thought it would be something quite basic. I can't believe I'm the first person to be irretated that 1 port measurements are taking twice as long as need be, just because I have done a 2-port calibration.
> but you are absolutely right; it should be a no-brainer to tell the analyzer to apply a lower order correction to a measurement when the selected calibration has a higher order set of error terms in it.
Perhaps it is something you could consider including in firmware updates for later instruments - of course there is no chance of the 8720D firmware being updated.
I must admit, I often have the VNA displaying just S11, but read out all 4 S parameters via GPIB as I need them, so any such change should really be based on the user setting a tick box for "Omit reverse sweep" or "Omit forward sweep", rather than based on what the instrument's front panel is displaying.
Dave
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