引用: Topcbpcba 发表于 2019-4-16 20:59
我相信PNA-L和PNA-X之间的差异是通过方法。
在PNA-X上,默认的直通方法是Unknown Thru,因此是7步2端口cal。
在PNA-L上,由于接收器架构,无法实现1层Unknown Thru cal,因此默认情况下它会执行适配器删除。
除了daras评论之外,您还可以使用PNA-L菜单栏顶部的下拉菜单在PNA-L上执行您自己的全局增量匹配校准:响应:校准并在那里某处是GDM(不在
仪器现在,所以不能说)。
由于Rx硬件配置的变化,PNA-L是L'ish(成本更低),这节省了资金,但需要预先确定用作源的端口匹配与端口匹配之间的差异
用作负载。
这是“delta-match”术语的特征,并且不会随着电缆/连接器/固定装置而改变,因此可以表征一次并用于其他cals。
但是一旦将其描述为第一层,则可以使用7步cals。
但等等,有更多:如果你使用“修改校准”复选框,在某些情况下你也可以使用QSOLT校准(如果你有一个定义的通过),并允许2端口校准只有4步(OSLT)。
一个4端口校准,有6个步骤(端口1上的OSL,1-2到1-3,到1-3)。
如果您的cal是不可插入的(例如每个端口上的f-f),您可以表征直至1次,将其添加到cal-kit,并将其用于定义的直通卡!
以上来自于谷歌翻译
以下为原文
Further to daras comment, you can perform your own Global Delta Match cal on the PNA-L using the pull-down menu on the top of the PNA-L menu-bar: Response:Cal and under there somewhere is GDM (Not at an instrument now, so can't say).
The PNA-L is L'ish (lower cost) due to changes in the Rx hardware configuration which saves money but makes requires a pre-characterization of the difference between the Match of a port used as a source, and the match of a port used as a load. This is the "delta-match" term which is characterized, and doesn't change with cables/connectors/fixtures so can be characterized one time and used for other cals.
But once that is characterized as a first tier, then the 7-step cals can be used.
BUT WAIT, there's MORE: If you use the "modify cal" check box, in some cases you can also use the QSOLT cal (if you have a defined thru) and that allows a 2 port cal with only 4 steps (OSLT). And a 4 port cal with 6 steps (OSL on port 1, thru 1-2, thru 1-3, thru 1-4).
If your cal is non-insertable (such as f-f on each port) you can characterize a thru 1 time, add it to the cal-kit, and use it for the defined thru cal!
引用: Topcbpcba 发表于 2019-4-16 20:59
我相信PNA-L和PNA-X之间的差异是通过方法。
在PNA-X上,默认的直通方法是Unknown Thru,因此是7步2端口cal。
在PNA-L上,由于接收器架构,无法实现1层Unknown Thru cal,因此默认情况下它会执行适配器删除。
除了daras评论之外,您还可以使用PNA-L菜单栏顶部的下拉菜单在PNA-L上执行您自己的全局增量匹配校准:响应:校准并在那里某处是GDM(不在
仪器现在,所以不能说)。
由于Rx硬件配置的变化,PNA-L是L'ish(成本更低),这节省了资金,但需要预先确定用作源的端口匹配与端口匹配之间的差异
用作负载。
这是“delta-match”术语的特征,并且不会随着电缆/连接器/固定装置而改变,因此可以表征一次并用于其他cals。
但是一旦将其描述为第一层,则可以使用7步cals。
但等等,有更多:如果你使用“修改校准”复选框,在某些情况下你也可以使用QSOLT校准(如果你有一个定义的通过),并允许2端口校准只有4步(OSLT)。
一个4端口校准,有6个步骤(端口1上的OSL,1-2到1-3,到1-3)。
如果您的cal是不可插入的(例如每个端口上的f-f),您可以表征直至1次,将其添加到cal-kit,并将其用于定义的直通卡!
以上来自于谷歌翻译
以下为原文
Further to daras comment, you can perform your own Global Delta Match cal on the PNA-L using the pull-down menu on the top of the PNA-L menu-bar: Response:Cal and under there somewhere is GDM (Not at an instrument now, so can't say).
The PNA-L is L'ish (lower cost) due to changes in the Rx hardware configuration which saves money but makes requires a pre-characterization of the difference between the Match of a port used as a source, and the match of a port used as a load. This is the "delta-match" term which is characterized, and doesn't change with cables/connectors/fixtures so can be characterized one time and used for other cals.
But once that is characterized as a first tier, then the 7-step cals can be used.
BUT WAIT, there's MORE: If you use the "modify cal" check box, in some cases you can also use the QSOLT cal (if you have a defined thru) and that allows a 2 port cal with only 4 steps (OSLT). And a 4 port cal with 6 steps (OSL on port 1, thru 1-2, thru 1-3, thru 1-4).
If your cal is non-insertable (such as f-f on each port) you can characterize a thru 1 time, add it to the cal-kit, and use it for the defined thru cal!
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