请问有没有办法提高采样率或水平点数？

您好，正如您在N9342C上观察到的那样，当您增加扫描时间时，样本数（和水平点）将会增加。
确认扫描时间后，无法手动调整样品编号。
这是正确的，零跨度下的扫描时间将降至600 ns，但样本数最少。
无论如何，N9342C将具有比N9342C更好的扫描速度。
它能满足您的测试要求吗？



     以下为原文

  Hello,

As you have observed on the N9342C, when you increase the sweep time, the sample number(and horizontal points) will increase.

The sample number can't be manually adjusted when you confirmed the sweep time.

That's right the sweep time under zero span will down to 600 ns, but the the sample number is the least.

Anyhow, N9342C will have better sweep speed than N9342C. 

Can it meet your test requirement?

嗨，非常感谢您的快速反应。
N9342C令人失望，并不能满足我们的要求。
虽然理论上N9342C的扫描速度可能比N1996A（扫描时间最短为1us）略快，但N1996A更好，因为即使在最快的扫描时，它仍然会使用大量的点来提供良好的波形分辨率。
相比之下，一旦N9342C的扫描时间接近此速度，显示的波形就变得非常有角度，因为它只包含以直线连接的600ns间隔的几个点！
您能否建议任何其他可在零扫宽模式下提供良好性能的分析仪型号？



     以下为原文

  Hi,

Many thanks for the quick response.  

The N9342C is disappointing, and doesn't really meet our requirement.  Although the N9342C can theoretically sweep slightly faster than the N1996A (which has a minimum sweep time of 1us), the N1996A is better because even at the fastest sweep it still uses a lot of points to provide good waveform resolution.  In contrast once the sweep time of the N9342C approaches this speed the displayed waveform becomes very angular because it comprises just a few points at 600ns intervals joined by straight lines!

Can you suggest any other analyzer models that might provide good performance in zero span mode?

嗨，你需要手持式分析仪吗？
或者您可以使用台式（非便携式）信号分析仪吗？
根据您的建议，X系列分析仪（例如N9010A EXA）可以显示低至1 us的样品，这些样品取决于采样率。
在启用40 MHz分析带宽选项的I / Q分析仪模式下（选项B40），可以使用51个样本查看1 us。
使用标准带宽选项B25，您可以查看32个样本。
http://www.agilent.com/find/EXA http://www.agilent.com/find/EXA_specifications E440xB ESA系列分析仪有两个选项，涵盖低至50（选项AYX）或25（
选项B7D）nsec。
限制再次是采样率，因此是扫描点的数量。
对于1美元的观点，ESA最多可以捕获41个采样点。
为了与之前的分析进行比较，对于600 ns的间隔，ESA最多可以捕获25个样本。
http://www.agilent.com/find/ESA - 查看规格指南，扫描时间部分ESA也可作为便携式配置提供。
如果您需要非常快的采样率，您可能需要考虑使用高带宽示波器。
最诚挚的问候，斯科特



     以下为原文

  Hi,

Do you need a handheld analyzer? Or can you use a desktop (non-portable) signal analyzer?

The X-Series analyzers (such as the N9010A EXA) can display down to 1 us with a number of samples that is dependent on the sample rate, as you suggested. In I/Q analyzer mode with 40 MHz of analysis bandwidth option enabled (option B40), it is possible to view 1 us with 51 samples. With the standard bandwidth option B25, you can view 32 samples.
http://www.agilent.com/find/EXA
http://www.agilent.com/find/EXA_specifications

The E440xB ESA series analyzers have two options that cover fast zero span sweeps down to 50 (option AYX) or 25 (option B7D) nsec.
The limitation is once again the sample rate and therefore the number of sweep points. For a 1 us view, the ESA can capture up to 41 sample points.
To compare with your previous analysis, for a 600 ns interval, the ESA can capture up to 25 samples.
http://www.agilent.com/find/ESA - check out the specifications guide, section on sweep time

The ESA is also available as a portable configuration.

If you need very fast sampling rates, you may want to consider a high bandwidth oscilloscope.

Best Regards,
Scott