想检查是否可以直接替换Keysight的HP8508a矢量电压表？

Dude：用VVM选项查看fieldfox！
http://www.keysight.com/en/pd-1760161-pn-N9923A/fieldfox-handheld-rf-vector-network-analyzer-4-6-ghz我不能相信Afsi还没有回复！
至于PNA：新的DIQ应用程序允许非常简单的校准和双通道下变频测量，包括相位跟踪与RF频率，LO频率，功率等。应用类别是选项089。



     以下为原文

  Dude: check out the fieldfox with VVM option! http://www.keysight.com/en/pd-1760161-pn-N9923A/fieldfox-handheld-rf-vector-network-analyzer-4-6-ghz

I can't belive Afsi didn't respond yet!  

As for the PNA: new DIQ app allows very simple calibraiton and measurement of dual channel down converts including phase tracking vs RF freq, LO freq, power etc.

App class is option 089.

嗨Dr_joel，对于Fieldfox N9923A，我可以将我的DUT的2个输出端口插入到fieldfox的端口1和端口2，并显示我的2 DUT之间的相位和幅度不同吗？
有没有关于如何测量2通道之间相位跟踪的图表？



     以下为原文

  Hi Dr_joel , 

For Fieldfox N9923A, i can just insert the 2 output ports from my DUTs  to Port 1 and Port 2 of fieldfox and will display the phase and amplitude different  between my 2 DUT? is there any diagram on how to measure phase tracking between 2 channel?

好的，我在这里。
:-)是的，FieldFox系列（N9923A或N9913 / 4/5 ......）产品具有VVM选项。
用户指南的http://www.keysight.com/en/pd-2424264-pn-N9914A/vector-voltmeter?nid=-33903.1090993&cc=US&lc=eng Page 165使用FieldFox讨论A / B测量
。
http://literature.cdn.keysight.com/litweb/pdf/N9927-90001.pdf在进行测量之前，您需要执行归零操作。
我回到了历史，我相信我们已经用N9923A讨论了A / B测量。
你还有N9923A吗？
你有没有让分光器测量工作？
ENA系列还提供VVM测量功能。
此致，Afsi Moaveni编辑：am95405于2014年11月21日上午10:03



     以下为原文

  Ok, here I am. :-)

Yes, the FieldFox family (N9923A, or N9913/4/5...) products have a VVM option.
http://www.keysight.com/en/pd-2424264-pn-N9914A/vector-voltmeter?nid=-33903.1090993&cc=US&lc=eng

Page 165 of the User's Guide discusses A/B measurements with FieldFox.
http://literature.cdn.keysight.com/litweb/pdf/N9927-90001.pdf

You do need to perform zeroing before making your measurement. I went back to the history and I believe we've discussed A/B measurements with N9923A. Do you still have the N9923A? Did you ever get the splitter measurement working?

ENA family also offers VVM measurement capabilities.

Regards,
Afsi Moaveni

Edited by: am95405 on Nov 21, 2014 10:03 AM

嗨Afsi，是的，我能够让分离器测量工作。实际上我想测量不同于2个不同DUT的相位（具有频率下变频）。
通过简单地将2个DUT输入连接到SG的分离器输出，并将2个DUT输出连接到HP8508a的2个端口，我可以使用HP8508a这样做。
我将能够通过频率扫描并获得不同的相位和幅度。
如果我想要高于测量值，那么推荐使用的设备是什么？
如果我没错，对于N9923a A / B模式，端口1连接到1个DUT输入，端口2连接到DUT输出。
如果具有频率转换的DUT将无法测量？



     以下为原文

  Hi Afsi, 

Yes i am able tot get the splitter measurement working..

Actually i want to measure the phase different  from 2 different DUTs (with frequency downconversion). Which i can do so using HP8508a by simply connect the 2 DUTs input to splitter outputs from SG and connect the 2 DUTs output to the 2 Port of HP8508a. and i will be able to sweep thru the frequencies and get the phase and amplitude different.

If i want to to e above measurement what will be the recommeneded equipments to use??  

If i am not wrong, for N9923a A/B mode Port 1 is connect to 1 DUT input and port 2 is connected to DUT output. If the DUT having Frequency conversion will not be able to measured?

在A / B模式中，A和B的频率相同。
D的频率转换



     以下为原文

  In A/B mode, the frequency of A and B is the same. Frequency conversion of the D

30年前，当我还是本科生时，我的最后一年项目使用了HP矢量电压表。
我忘记了模型，但它有两个高阻抗探头。
我怀疑PNA可以做类似的高阻抗探头。
FieldFox上的矢量电压表功能完全不同。
FieldFox对“矢量电压表”的定义与旧HP套件的定义略有不同。
我建议您确切地检查矢量电压表Dave的含义。



     以下为原文

  3 decades ago when I was an undergraduate,  my final year project used an HP vector voltmeter.  I forget the model, but it had two high impedance probes. 

I suspect a PNA could do similar witjh high impedance probes.  The vector voltmeter function on the FieldFox is quite different.  

The FieldFox definition of "vector voltmeter" is a bit different from that of old HP kit. I suggest that you check exactly what is meant by vector voltmeter

Dave.