请问是否有内置功能可以用来查找VNA中VNA测量的总时间？

虽然这可能不是您想要的确切答案，但它可能有所帮助。
如果单击* Utility，System，Service，Utilities，Special Diagnostics，T​​ime Sweep *，PNA将在屏幕底部显示实际扫描时间。
这是一次扫描的时间。
我不确定它是否包含任何回溯时间;
但我的预感是它没有。
真正了解这一点的人本周正在度假。



     以下为原文

  While this may not be the exact answer you want, it may help.

If you click on *Utility, System, Service, Utilities, Special Diagnostics, Time Sweep* then the PNA will display the actual sweep time at the bottom of the screen.  This is the time for one sweep.   I am not sure if it includes any retrace time; but my hunch is that it does not.  The person that would really know this is on vacation this week.

我认为这只是在“特殊”开发位，没有A-release位......



     以下为原文

  I think that's only on "special" development bits, no A-release bits...

感谢您的答复



     以下为原文

  Thank you for the reply

是否可以将实时S21数据保存到VNA硬盘中？
（我使用Labview来控制VNA，我已经设置了vna数据（20次测量）1秒钟并将其保存到我的PC上）如果我在VNA上安装labview，我能否缩短测量时间？
先谢谢你。



     以下为原文

  Is it possible to save real time S21 data into VNA hard drive? (I use Labview to control VNA and I have set up to take vna data(20 measurements) for 1 second and save it on to my PC)

If I install labview on VNA, will I be able to reduce my time for measurements?

Thank you in advance.

有一个选项允许您非常快速地将数据流式传输到FIFO缓冲区，用于非常深的数据（4 GByte）。
您可以进行重复的CW测量（快速CW）或扫描（快速组）。
在流式传输模式下，您每秒最多可以发送400,000个点。
虽然这是为N5264（天线接收器）定义的，但它在N5242上也能正常工作。
帮助文件有一些编程示例（它不是太棘手，我已经使用过它）。
对不起，没有Labview，但我可以敲一个VEE的例子！
来自帮助文件：FIFO（选项118）和其他天线功能------------------------------------
--------------------------------------------以下功能，用于
PNA-X型号和N5264A专为天线应用而设计。
快速扫描功能（选项118）FIFO缓冲区和快速CW FIFO缓冲区和快速组FIFO缓冲区和快速段其他有用的天线功能点平均点扫描跟踪触发另请参见N5264A脉冲测量频率（安全）消隐外部触发------
--------------------------------------------------
------------------------快速扫描功能（选项118）以下功能可让您快速测量数据并将数据下载到远程计算机。
快速CW，快速组和快速CW段仅适用于FIFO数据缓冲区。
这些功能只能用于SCPI或COM命令。
使用DataInCompactForm时COM比SCPI快。
否则，SCPI比COM快。
以下示例程序中演示了这些功能：下载并安装FIFO Tester - 一个C＃程序，它使用COM或SCPI接口将数据下载到FIFO缓冲区，并从FIFO缓冲区读取数据。
还提供了源代码。
请参见http://na.tm.agilent.com/pna/apps/applications.htm FIFO数据缓冲区FIFO（First-IN，First-OUT）数据缓冲区是一个循环缓冲区，允许非常快速的读写访问。
启用后，收集的所有数据都将放入4 GB FIFO缓冲区。
您可以写入FIFO缓冲区并同时读取FIFO缓冲区。
每个查询最多可以读取100万个数据点。
REAL / IMAGINARY对是FIFO缓冲区唯一支持的格式。
预设或仪器状态调用将关闭FIFO缓冲区集合。
当存在多个测量时，来自每个测量的数据按以下顺序存储在FIFO缓冲器中。
这些测量被分成线条以便于阅读。
R，A，B，C，D，R / R，A / R，B / R，C / R，D / R，R / A，A / A，B / A，C / A，D / A，
R / B，A / B，B / B，C / B，D / B，R / C，A / C，B / C，C / C，D / C，R / D，A / D，B /
D，C / D，D / D快速CW在快速CW模式下，PNA显示不会更新。
PNA计算机没有后台计算或其他“干扰”。
因此，数据是实时获取的。
发送Fast CW命令之前，必须满足以下要求。
FIFO开启正在测量单个通道。
其他频道可以保留。
所有测量均在单次扫描中获得。
重要事项 - 快速CW和IF带宽设置IF带宽为10 kHz或更低 - 每次采集后数据立即传输到FIFO。
IF带宽大于10 kHz - 数据以组的形式传输到FIFO。
触发采集不会放入FIFO缓冲区，直到完成总点数或完成一组中间点。
每个IF带宽设置的组内点数不同。
注意：请参阅SCPI和COM中的示例程序。
快速CW设置数据点的数量，覆盖标准通道设置。
退出Fast CW时，FIFO数据缓冲区被清除。
外部触发信号仅允许通过后面板Trig In连接器 - 而不是Aux1和Aux2 In连接器。
如果触发发送到PNA的速度超过响应速度，则会显示错误消息。
具有FIFO数据缓冲区的快速组通过此速度优化功能，可以暂停与Windows或其他PNA“开销”呼叫的交互，从而实现非常快速且可预测的测量时序。
满足以下要求时，将自动启用快速组：FIFO为ON正在测量单个通道。
其他频道可以保留。
所有测量均在单次扫描中获得。
计数> 1时启用组触发器。



     以下为原文

  There is an option that allows you stream data to a FIFO buffer, very fast, for very deep data (4 GByte).  You can do repeated CW measurements (fast CW) or sweeps (Fast Groups).  In the streaming mode, you can send up to 400,000 points per second.  While this was defined for the N5264 (Antenna Receiver) it works just as well on the N5242.  The help file has some programming examples (it's not too tricky, I've used it).  Sorry, no Labview but I can knock-up a VEE example!

from the help file:
FIFO (Opt 118) and other Antenna Features

--------------------------------------------------------------------------------

The following features, used with the PNA-X models and the N5264A, were designed specifically for Antenna applications. 

Fast Sweep Features (Opt 118) 
FIFO Buffer and Fast CW

FIFO Buffer and Fast Groups

FIFO Buffer and Fast Segments

Other Useful Antenna Features 
Point Averaging

Point Sweep

Trace Triggering

See Also
N5264A

Pulsed Measurements 

Frequency (Security) Blanking 

External Triggering 


--------------------------------------------------------------------------------

Fast Sweep Features (Opt 118)
The following features allow you to very quickly measure and download data to a remote computer.  

Fast CW, Fast Groups, and Fast CW Segments all work ONLY with the FIFO Data Buffer.

These features can be used ONLY with SCPI or COM commands.  COM is faster than SCPI when using DataInCompactForm. Otherwise, SCPI is faster than COM.

These features are all demonstrated in the following example program:

Download and install the FIFO Tester - a C#  program that uses either the COM or SCPI interface to download data to, and read data from, the FIFO buffer. Source code is also provided.  See http://na.tm.agilent.com/pna/apps/applications.htm
 

The FIFO Data Buffer
The FIFO (First-IN, First-OUT) data buffer is a circular buffer that allows very fast Read-Write access.

When enabled, all the data gathered is placed into a 4 GB FIFO buffer.

You can write to, and simultaneously read from, the FIFO buffer.

A maximum of 1 million data points can be read for each query.

REAL / IMAGINARY pairs is the ONLY supported format for the FIFO buffer.

A preset or instrument state recall will turn off the FIFO buffer collection.

When more than one measurement is present, data from each measurement is stored in the FIFO buffer in the following order. These measurements are separated into lines for easier reading.

R, A, B, C, D,

R/R, A/R, B/R, C/R, D/R,

R/A, A/A, B/A, C/A, D/A,

R/B, A/B, B/B, C/B, D/B,

R/C, A/C, B/C, C/C, D/C,

R/D, A/D, B/D, C/D, D/D

Fast CW
In Fast CW mode the PNA display is not updated. There is no background computation or other 'interference' from the PNA computer. Therefore, data is acquired real-time.

The following requirements must be met before sending the Fast CW command. 

FIFO is ON

A single channel is being measured. Other channels can be in Hold.

All measurements are acquired in a single sweep.

IMPORTANT - Fast CW and IF Bandwidth setting

IF Bandwidth of 10 kHz and lower - Data is transferred immediately to the FIFO after every acquisition.

IF Bandwidths greater than 10 kHz - Data is transferred to the FIFO in groups. A triggered acquisition is NOT placed into the FIFO buffer until either the total number of points is completed, or an intermediate group of points is finished. The number of points within a group differs for each IF Bandwidth setting.
 

Notes:

See example programs in SCPI and COM.

Fast CW sets the number of data points, overwriting the standard channel setting.

When exiting Fast CW, the FIFO data buffer is cleared.

External trigger signals are allowed only through the rear-panel Trig In connector - NOT the Aux1 and Aux2 In connectors.

An error message appears if triggering is sent to the PNA faster than it can respond.

Fast Groups with FIFO Data Buffer
With this speed optimization feature, interaction with Windows or other PNA 'overhead' calls are suspended, allowing very fast and predictable measurement timing.  

Fast Groups is automatically enabled when the following requirements are met:

FIFO is ON

A single channel is being measured. Other channels can be in Hold.

All measurements are acquired in a single sweep.

Group trigger is enabled with count > 1.