网络分析仪视频显示变色

您有没有使用过Agilent / HP电源（E3631A或E3632A）并将其放在8753的左上方？
回到我经常看到的那些日子里。
电源变压器的磁场搞砸了8753 CRT。
等了几天，它通常会消失。
如果您确实将电源放在右侧的8753位置或CRT屏幕上。



     以下为原文

  Did you by any chance use one of the Agilent/HP power supply (E3631A or E3632A) and place that on the top left side of the 8753?
Back in the days I see that very often. The magnetic field of the power supply transformer messed up the 8753 CRT. Waite couple of days and it usually go away. If you do put that power supply on the top of the 8753 place that on the right side or fare from the CRT screen.

亲爱的米雷克;
谢谢你的依赖。
我以为我在解决这个问题上运气不好。
要回答这个问题：您是否有任何机会使用Agilent / HP电源（E3631A或E3632A）并将其放在8753的左上方？
答：我发送8753C进行维修，我不知道技术人员做了什么。
我读过如果错误地更换电源，可能会损坏设备。
我觉得这很容易做到。
我权衡了将设备送去维修或自行完成的好处和后果，我决定将设备送去维修。
如果您知道电源安装的详细信息，在进行错误操作和进一步损坏设备方面，我很乐意阅读它。
当你写道：“回到白天” - 我意识到你必须是一个长时间使用网络分析仪的人，8753C是一个旧单位，但它是一个很好的单位。
与8753D及其后的所有其他网络分析仪相比，它具有许多优势。
例如，单独的S参数测试集具有其优点和缺点。
当你写道时，我不太明白你写的是什么：“等几天，它通常会消失”你能解释一下测试是如何进行的吗？
感谢您的回复。



     以下为原文

  Dear Mirek;

     Thank you for your rely.   I thought I was out of luck with regard to solving this problem.

     To answer this question:

Did you by any chance use one of the Agilent/HP power supply (E3631A or E3632A) and place that on the top left side of the 8753?

     Answer:   I sent the 8753C in for repair and I don't have any idea what the techs did.   

I read that if one replaces the power supply incorrectly, it is possible to damage the unit.   I got the impression that this was easy to do.   I weighed the benefits and consequences of sending the unit in for repair or doing it by myself and I decided to send the unit in for repair.  If you know the details of the power supply installation, in terms of doing it incorrectly and damaging the unit further, I would be happy to read about it.  

      When you wrote:

"Back in the day" - I realized that you must be a guy working with network analyzers for a long time, the 8753C is an old unit but it is an excellent unit.   It has a lot of advantages over the 8753D and all the other network analyzers that followed it.  For example, a separate S parameter test set has its advantages and disadvantages. 

I didn't quite understand what you wrote when you wrote:

"Waite couple of days and it usually go away"

Can you explain how the test was conducted?

Thanks for your reply.

我假设这是一个CRT显示器而不是LCD显示器。
它看起来很磁化。
你需要对它进行消磁。
如果您没有消磁器，请找一个旧的AC操作卷笔刀（通常是较旧的，更好的。），还有一支铅笔。
将磨刀器放在离CRT几英尺远的位置并插入铅笔。
在它运行时，将它非常靠近CRT的前面，并以圆周运动方式移动。
如果8753通电显示器，则观看会更有趣。
在取下铅笔之前，将磨刀器移离CRT几英尺。
如果这不能解决问题，请取下顶盖并重复，但这次是CRT外壳的整个区域。



     以下为原文

  I am assuming this is a CRT display and not an LCD display.
It looks magnetized.  You need to degauss it.
If you do not have a degausser, find an old AC operated pencil sharpener (usually the older, the better.), along with a pencil.  Place the sharpener a couple feet away from the CRT and insert the pencil.  While it is running, bring it very close to the front face of the CRT, and move in a circular motion.  It is much more fun to watch if the 8753 is powered up with the display on.  Before removing the pencil, move the sharpener a couple of feet away from the CRT.

If this does not solve the problem, remove the top cover and repeat, but this time do the entire area of the CRT enclosure.

亲爱的Jvall;
感谢您的建议。
这听起来像尝试一样有趣。
一旦我掌握好的工具，我会试一试。
再次感谢您的反馈。
真诚的，SOLT_guy



     以下为原文

  Dear Jvall;

     Thank you for your advice.   

     It sound like something that would be fun to try.

     I will give it a try as soon as I get a hold of good right tool.

     Again, thank you for your feedback.

     Sincerely,

     SOLT_guy

我认为技术可能会在8753的左侧顶部放置一些东西（如电源）。这会使CRT面罩磁化。
在使用8753几天之后，这种症状通常会消失。我认为惠普在CRT上实施了一些脱气，为什么它通常会在短时间内自行解决。
我的意思是“等待几天，它通常会消失”顺便说一句，8753E永远不会发生......因为它有液晶显示器...大声笑。
我只是希望替换电源不是这种颜色转换的原因。
在这种情况下，您确实遇到了一些问题。
多年来致力于8753 B / C / D＆amp;
E是通过票价，E是他们中最好的。
惠普解决了所有的错误，屏幕是液晶显示器，可以分成4个。但这仍然没有比PNA更好。
“一个单独的S参数测试集”，8753E也有特殊版本。
我们甚至从其他供应商处获得了单独的4端口测试集。
测试集很严格，但测试程序非常糟糕 - 它没有大声将分段模式设置为线性。
4端口测试装置适用于耦合器和变压器测量 - 特别是为s4p文件输出4端口参数。
“我意识到你必须长期从事网络分析仪的工作”不久......仅仅18年:)问候。



     以下为原文

  I think that the tech probably place something (like power supply) on the top of left side of the 8753. That magnetize the CRT mask. 
That symptom usually go away after few days of usage of the 8753. I think HP implement some degassing on there CRT that why it usually fix it self after short time. 
That what I mean to "Waite couple of days and it usually go away"

By the way that never happen with 8753E...because it had LCD...LOL.

I just hope that the replacement power supply is not the cause of that color shift. In such case you do have bit of the problem.

Over the years work with   8753 B/C/D & E's 
By fare the E was the best of them. HP work out all of the bugs and the screen was LCD that could be split in 4. But that still was nothing compare to PNAs.
"a separate S parameter test set", The 8753E also have that in special version. We even had separate 4 port test set from other vendor. The test set was grate but the test program really bad - it did not aloud to set segmented mode only linear. The 4 port test set was good for coupler and transformer measurement - specially getting out 4-port parameters for s4p files.   

"I realized that you must be a guy working with network analyzers for a long time"
Not so long....just 18 years :)

Regards.

是的，内置的消磁线圈在开启时被激活;
然而，它可能不足以消除一切。
循环使用电源多次以激活线圈可能有所帮助，但铅笔削刀技巧效果最佳。
您还可以购买散装磁带橡皮擦，但谁再使用磁带？



     以下为原文

  Yes, the built-in degaussing coil is activated at turn on; however it may not be enough to demagnetize everything.  Cycling the power a bunch of times to activate the coil may help, but the pencil sharpener trick works the best.  You could also buy a bulk tape eraser, but who uses tape anymore?

亲爱的米雷克;
感谢您的反馈意见。
我同意有一个四端口VNA可以开始使用它会很不错。
就是这样，大多数人都买不起新的4端口VNA。
只有大公司才会有那么多“松散的变化”（医疗设备制造商，国防承包商等）。
几年前，一位前安捷伦员工（现在为Anritsu工作）在IEEE会议上做了精彩的演讲，他解释了使用2端口测试系统的人如何使用更便宜的组件转换到4端口测试系统（它
实施该系统仍然需要500到几千美元，这取决于您是购买二手设备还是新设备。
当然，您必须自己描述所有组件并自己完成所有准备工作，除非您是与他一样知识渊博的人的朋友，否则没有人会给您第二意见。
如果你计划去那条路，你应该和我保持联系。
也许我们可以互相帮助。
现在，我只是想让你现在的系统保持活力，你可能会看到。
无论如何，谢谢你的回复。
真诚的，SOLT_guy



     以下为原文

  Dear Mirek;

     Thank you for your feedback.

     I agree that it would be nice to have a four port VNA kicking around.    It is just that, most individuals cannot afford to buy a new 4 port VNA.   Only major corporations have that much "loose change" kicking around (medical equipment manufacturerers, defense contractors, - etc.).

    An former Agilent employee (now working for Anritsu) gave an excellent presentation at an IEEE meeting a few years back where he explained how a person working with a 2 port test system can convert over to a 4 port test system using less expensive components (it would still cost you from 500 to a few thousand dollars to implement this system, depending if you a purchased used, or new equipment).    Of course, you would have to characterize all of your components and do all the prep work yourself and there would be no one to give you a second opinion, except if you were personally friends with someone as knowledgeable as him.    

     If you plan on going on that route, you should keep in touch with me.    Maybe we can help each other.   

     Right now, I am just trying to keep my present system alive as you can probably see.   

     Anyway, thank you for your reply.

     Sincerely,

     SOLT_guy

> {quote：title = SOLT_guy写道：}>一位前安捷伦员工（现在为Anritsu工作）在几年前的一次IEEE会议上做了精彩的演讲，他解释了使用双端口测试系统的人如何转换为
使用较便宜的组件的4端口测试系统（实施该系统仍然需要500到几千美元，具体取决于您购买的是否使用过的新设备）。
当然，您必须自己描述所有组件并自己完成所有准备工作，除非您是与他一样知识渊博的人的朋友，否则没有人会给您第二意见。
他是如何进行2端口到4端口转换的？
我对此感兴趣，虽然我的8720D没有可配置的测试装置，所以我的选择有限。
我只能将2个端口连接到某种继电器。
事实上，我已经开始收集零件来做到这一点。
我买了一套专为HP 8711A VNA设计的开关测试装置。
我被告知这些中有20 GHz继电器，但我的只有4 GHz继电器，这有点烦人，但我可以稍后改变。
我还买了一个Arduino Mega 2560微控制器来控制它，并打算通过GPIB控制它，所以我买了一些buss收发器。
但它远非一个理想的解决方案，但我买不起一个propor 4端口VNA。
你可以在这里找到我为此购买的一些东西的图片8711A 12端口切换测试装置（8711A K12）
戴夫



     以下为原文

  > {quote:title=SOLT_guy wrote:}

>    An former Agilent employee (now working for Anritsu) gave an excellent presentation at an IEEE meeting a few years back where he explained how a person working with a 2 port test system can convert over to a 4 port test system using less expensive components (it would still cost you from 500 to a few thousand dollars to implement this system, depending if you a purchased used, or new equipment).    Of course, you would have to characterize all of your components and do all the prep work yourself and there would be no one to give you a second opinion, except if you were personally friends with someone as knowledgeable as him.   

How did he do the 2 port to 4-port conversion? I am interested in this, although my 8720D does not have a configurable test set, so I have limited options. All I have it to be able to connect the 2 ports to some sort of relay. I have in fact started to collect parts to do this. I bought a switching test set designed for an HP 8711A VNA. I was told these have 20 GHz relays in them, but mine had only 4 GHz relays, which is a bit annoying, but I can change that later. I also bought an Arduino Mega 2560 microcontroller to control it, and intend controlling it via GPIB, so I have bought some buss transceivers. But it is far from an ideal solution, but I can't afford a propor 4 port VNA. 

You can find a picture of some of the stuff i bought for this here
8711A 12-port switching test set (8711A K12)
 

Dave

亲爱的柯比博士;
我将通过直接电子邮件向您发送我可用的唯一记录的* .pdf文件。
我会发布我在这个网站上的内容，但是，这是一个安捷伦网站，该公司可能不希望其网站上有其他公司的文献。
关于安捷伦在其网站上“可能喜欢或不喜欢”的观点，这纯粹是我自己的观点 - 纯粹是假设的。
但是，我不想打开冒犯任何人的“可能性”。
为了公平对待公司和其他读者，我想强调的一点是，安捷伦是少数几家拥有向公众开放的讨论板的公司之一，任何人都可以直接从工程师那里获得信息。
我很感激。
我希望你喜欢我发送的* .pdf。
然而，我认为，口头陈述是相关的“有说服力”信息的阐述。编辑：SOLT_guy于2014年3月23日上午10:52



     以下为原文

  Dear Dr. Kirby;

     I am going to send you *.pdf file of the only record that I have available through direct email.  I would post what I have on this site, however, this is an Agilent website and this company may not want another company's literature on its web site.    This opinion about what Agilent "may or may not like" on its website is purely my own opinion - purely hypothetical.  However, I do not want to open up the "possibility" of offending anyone.  

     To be fair to the company and other readers, I want to stress the point that, Agilent is one of the few companies which has a discussion board that is open to the public, where anyone can receive information directly from an engineer.     

      I am grateful.  

      I hope you enjoy the *.pdf I sent.   However, it is my belief that, the oral presentation was where the related "cogent" information was set forth.

Edited by: SOLT_guy on Mar 23, 2014 10:52 AM

> {quote：title = SOLT_guy写道：} {quote}>亲爱的柯比博士;
>>我将通过直接电子邮件向您发送我唯一可用记录的* .pdf文件。
我会发布我在这个网站上的内容，但是，这是一个安捷伦网站，该公司可能不希望其网站上有其他公司的文献。
关于安捷伦在其网站上“可能喜欢或不喜欢”的观点，这纯粹是我自己的观点 - 纯粹是假设的。
但是，我不想打开冒犯任何人的“可能性”。
>>为了公平对待公司和其他读者，我想强调的一点是，安捷伦是少数几家拥有向公众开放的讨论区的公司之一，任何人都可以直接从工程师那里获得信息。
>>我很感激。
>>我希望你喜欢我发送的* .pdf。
但是，我认为，口头陈述是提出相关“有说服力”信息的地方。
谢谢。
我很确定没有人会对安捷伦网站上的Anritsu文献感到冒犯。
我曾经发过一张R + S笔记，没有人抱怨过。
相比之下，安捷伦的一名员工表示这是“有趣的”。
如果有人呻吟，他们可以向我抱怨，而不是你。
我希望你能修好你的8753C。
8753系列肯定是一款流行的VNA。
戴夫



     以下为原文

  > {quote:title=SOLT_guy wrote:}{quote}
> Dear Dr. Kirby;
> 
>      I am going to send you *.pdf file of the only record that I have available through direct email.  I would post what I have on this site, however, this is an Agilent website and this company may not want another company's literature on its web site.    This opinion about what Agilent "may or may not like" on its website is purely my own opinion - purely hypothetical.  However, I do not want to open up the "possibility" of offending anyone.  
> 
>      To be fair to the company and other readers, I want to stress the point that, Agilent is one of the few companies which has a discussion board that is open to the public, where anyone can receive information directly from an engineer.     
> 
>       I am grateful.  
> 
>       I hope you enjoy the *.pdf I sent.   However, it is my belief that, the oral presentation was where the related "cogent" information was set forth.

Thank you. I am pretty sure that nobody will be offended about the Anritsu literature on the Agilent web site. I once posted a R+S note, and nobody complained. In contrast an Agilent employee said it was "interesting". 

If someone moans, they can moan at me, not you. 

I hope you get your 8753C fixed. The 8753 series sure is a popular VNA. 

Dave

附件

• application_vna_balanced_transmission_line.pdf3.3 MB
  

SOLT_guy，在没有修复HP设备的任何经验的情况下，我拆卸，修理并安装了我的8753C电源，导致间歇性故障。
这是几年前所以我不记得太多的细节，但我发现很难相信它可以安装错误。
这很直接。
至于消磁设备，在ebay上可以找到消磁电视回路，或者如果你在该地区有任何当地的电视维修店，他们可能仍然有一个收集灰尘，并可能在一分钟内消除您的CRT消磁。



     以下为原文

  SOLT_guy,

Without any prior experience with repairing HP equipment I disassembled, repaired and installed back my 8753C power supply which developed a intermittent failure. It was couple years ago so I do not remember much details but I find it hard to believe it can be installed incorrectly. It was pretty straight forward.

As to the degaussing device, degaussing TV loops can be found on ebay, or if you have any local TV repair shops in the area they may still have one collecting dust and could degauss your CRT within a minute.

亲爱的Miv;
我很高兴看到你的修理进展顺利。
当我读到电源安装问题时，我感到“惊慌失措”。
我甚至在同一家公司的数据上校准了我的NA，以确保技术人员再看看我的单位。
你可以看到，也许，这不是一个好主意。
好吧，你活着，你学习。
感谢您的回复。
真诚的，SOLT_guy



     以下为原文

  Dear Miv;

     I am happy to read your repair went well.  

     When I read about the power supply install issue, I got "spooked."

     I even got my NA calibrated with data at the same company just to be certain that the tech would take a second look at my unit.    As you can see, maybe, that wasn't such a great idea.   

     Well, you live and you learn.

     Thanks for your reply.

     Sincerely,

     SOLT_guy

我从来没有试过这个，但有人告诉我，人们可以使用电钻进行消磁。
我认为它需要是电源供电而不是电池供电。



     以下为原文

  I have never tried this,  but someone told me that one can use an electric drill for degaussing. I assume that it would need to be a mains powered one rather than a battery powered one.

亲爱的柯比博士;
哇，你是过去的声音吗？
你最近过得怎么样？
我希望一切顺利。
我希望你对NA的研究进展顺利。
你学到的速度让我感到惊讶。
你是一个忙碌的人。
我没有在这个网站上呆很长很长时间。
这场“小小”灾难将我带回了这里。
希望在不久的将来，我不必购买另一台网络分析仪。
这些测试仪器确实很痛苦，正确操作的验证确实是成本和时间方面的问题。
当你发现你的NA刚刚死在你身上时，没有什么比得上“沉没”的感觉了。
我只是希望这件事能继续存在几年。
真正困扰我的一个声音是“高音调（”尖叫“）。你碰巧知道这意味着什么吗？希望有人会知道并提供一些反馈意见。无论如何，很高兴收到你的来信。真诚的，
SOLT_guy



     以下为原文

  Dear Dr. Kirby;

     Wow, are you a voice from the past.   How have you been?  I hope everything is going well with you.

     I hope your research with NAs is going well.   The rate that you learn amazed me.   You were one busy guy. 

     I haven't been at this website for a long, long, time.   

     This "little" disaster brings me back here.    Hopefully, in the near future I won't have to be shopping for another network analyzer.   These test instruments can really be a pain and verification of proper operation is really an issue in terms of cost and time.   There is nothing like the "sinking" feeling you get when you discover your NA has just died on you.   I just hope this thing will live on for a few more years. 

      One sound that really bothers me is "high pitched tones ("squealing").   Would you happen to have any idea what that means?    

      Hopefully, someone will know and offer some feedback.   
    
     Anyway, it was good to hear from you.

     Sincerely,

     SOLT_guy

我不知道这个信息是否正确但我最近在hp_agilent_equipment雅虎集团上作为回复阅读了原始海报抱怨8753 CRT上不同颜色的部分线条。
如果为真，则可能存在高电压稳定性问题。
Quote：我记得，8753使用光束穿透CRT。
如果是，则HV确定显示颜色。
引用//



     以下为原文

  I have no idea if this info is correct but I read recently on hp_agilent_equipment  Yahoo group as a reply after the original poster complained of portions of lines on an 8753 CRT where different colours.   If true then may be you have a high voltage stability problem.


Quote:

As I remember, the 8753 uses a beam penetration CRT. If so, the HV
determines the display color.

Quote off //