PXA网络分析仪单元格式如何更改

据我所知，PXA是一个信号分析仪，而不是射频或微波网络分析仪，这是您发布的论坛所针对的。
如果它是一个信号分析仪，可能有一个更合适的论坛，但我必须承认，看看网络分析仪
对我来说，最合适的是什么并不明显。
如果它是您拥有的PNA网络分析仪，那么您就在正确的位置。
通常，在询问有关测试设备的建议时，最好说明型号以及固件和/或软件版本。
当我知道固件版本不重要时，我会省略固件版本，但从不会出现型号。
BTW你的意思是dBm，还是mdB正确？
我不知道mdB是什么，虽然我可以猜到毫巴，但它不是我遇到过的东西。
但后来我对信号分析仪知之甚少。
戴夫
编辑：drkirkby于2014年6月24日下午2:39



     以下为原文

  As far as I can tell, the PXA is a signal analyzer not a RF or microwave network analyzer which is what the forum you have posted to is for. If it is a signal analyzer,  there is probably a more appropriate forum, though I must admit, looking at 
Network Analyzers
 

it is not obvious to me what is the most suitable one. 

If it is a PNA network analyzer you have, then you are in the right place.

Generally when asking for advice on test equipment, it is best to state the model number,  as well as firmware and/or software release version(s). I omit the firmware version when I know it is unimportant, but never the model number. 

BTW did you mean dBm, or was mdB correct? I did not know what mdB is, though I could guess at milli dB, but it is not something I have ever come across. But then I know very little about signal analyzers.

Dave
 
Edited by: drkirkby on Jun 24, 2014 2:39 PM

嗨戴夫 - 请将Ran的主题发送到信号分析器论坛，如果这是关于N9030A PXA的话。
谢谢！



     以下为原文

  Hi Dave -

Please send Ran's thread to the Signal Analyzer forum if this turns out to be about a N9030A PXA.

Thanks!

在向任何电子设备论坛发布有关“如何”问题的消息时，将有助于提供型号和软件修订。
我在Agilent E5071C软件版本11.31上看到过与此类似的内容，但我在跟踪上显示S21相位，我注意到如果标记相位值下降到小于1度，则显示的标记值将以毫秒显示。
显示dB时不会发生这种情况，因为dB的正常格式始终为0.0000或10.000或100.00。
在这种情况下，提供显示的比例值可能会很好。



     以下为原文

  When posting messages to any electronic equipment forum concerning "how to" questions it would help to give the Model Number and Software Revision.  I have seen something similar to this on an Agilent E5071C Software Revision 11.31 but I was displaying S21 Phase on the trace and I noticed that if the Marker Phase value dropped to less that 1 Degree the displayed Marker Value would be displayed in millidegrees.  This does not happen when displaying dB in that the normal format for dB is always 0.0000 or 10.000 or 100.00.  It would probably be good in this instance to also provide the displayed Scale Value.

他提到S21的事实似乎表明他的意思是PNA而不是PXA。
是mdB是毫巴。
我在PNA上看不到这个。
正如drkirby所说，您应该始终提供模型和固件版本。



     以下为原文

  The fact that he mentions S21 seems to indicate he meant PNA, not PXA.
Yes mdB is milli dB.

I don't see this on my PNA.  As drkirby says, you should always provide your model and firmware revision.

> {quote：title = jvall写道：} {quote}>他提到S21的事实似乎表明他的意思是PNA，而不是PXA。
哎呀，我错过了。
>是mdB是毫巴。
我从未遇到过它，但这是我最好的猜测。
我曾经在某个地方工作，我的经理让我弄清楚一些电脑消耗的电量，安装一些空调。
我用Watts通过电子邮件发送了这个数字，但收到了一条消息，他不想在Watts中使用它，但没有提到需要什么单元。
我本可以猜到它是BTU，但每两周将它转换成千焦耳。
后来我得到了瓦特没问题的答复 - 空调承包商可以使用瓦特。
*编辑 - 我不太确定什么是最离奇的单位 - 每两周的千焦耳功率或每秒输出欧姆的损失。
@ 1 GHz。* DaveEdited：drkirkby于2014年6月24日下午4:38



     以下为原文

  > {quote:title=jvall wrote:}{quote}
> The fact that he mentions S21 seems to indicate he meant PNA, not PXA.

Oops, I missed that. 

> Yes mdB is milli dB.

I've never come across it, but it was my best guess.

I once worked somewhere where my manager asked me to work out the power consumed by some computers, for the installation of some air conditioning. I emailed the figure in Watts, but got a message back he did not want it in Watts, but with no mention of what unit was required. I could have guessed it was BTU, but converted it to kilo Joules per fortnight. Later I got a reply that Watts were ok - the air conditioning contractors could use Watts.  

*Edit - I'm not so sure what is the most bizarre unit - power in kilo Joules per fortnight or loss in gig Ohms per second. @ 1 GHz.* 

Dave

Edited by: drkirkby on Jun 24, 2014 4:38 PM

嗨，你是对的，我的意思是PNA系列，mdB是毫巴。
我实际上认为当你将比例配置为1dB / dev时它会自动变为mdB。
选择更高的比例（5dB / dev）使其再次显示正常单位...因为我使用较低的比例来调整滤波器，并且我想要打印版本的结果，我调整它为1dB / dev
然后更改为5dB / dev以进行打印输出。
谢谢大家，冉



     以下为原文

  Hi,
You were right, I did mean the PNA series, and mdB was milli dB.
I actually figured that when you configure the scale to 1dB/dev it automatically changes to mdB.
Choosing a higher scale (5dB/dev) makes it show normal units again...
As I use the lower scale in order to tune a filter, and I want to have a printed version of the results, I tune it with 1dB/dev and then change to 5dB/dev for the print-out.
Thanks all,

Ran

是的，毫分贝（mdB）一直是纯粹主义者争论的焦点（我开始打字最纯粹，但这可能不适用于我们任何人）。
dB表示deci-Bel或Bel的1/10。
所以mdB是milli-deci-Bel。
但是从实用意义上说，当刻度很小，并且标记分辨率设置为2位小数时，那么值0.001或0.002都显示为0.00都没有用，因此切换到1 mdB或2 mdB。
这就是UI设计师的生活。



     以下为原文

  Yes, milli-dB (mdB) has always been a bone of contention amoung purists (I started to type purest, but that likely doesn't apply to any of us).  dB means deci-Bel or 1/10 of a Bel.  so mdB is milli-deci-Bel.

But from a pragmatical sense, when the scale is small, and the marker resolution is set to 2 decimals, then having a value of 0.001 or 0.002 both show up as 0.00 is not to useful, thus the switch to 1 mdB or 2 mdB.  

Such is the life of a UI designer.