HP 8752C Source＆Option 003可用性？

我怀疑你可以购买任何这些，因为它完全没有支持，但如果你能找到零件编号，那么你可以使用parts.agilent.com来查询可用性和价格。
即使电路板可用，我怀疑它的成本远远超过您为8752C所支付的费用。
安捷伦的产品很好，但价格通常不在业余爱好者的范围内。
您可以尝试询问HP / Agilent Yahoo组，因为很有可能有人知道这个问题。
请注意我不适用于安捷伦。
戴夫



     以下为原文

  I doubt you can buy any of those bits, as it is well out of support, but if you can find the part numbers, then you can use parts.agilent.com to look up the availability and price. Even if the board is available, I suspect it would cost far more than you paid for the 8752C. Agilent stuff is good, but prices are generally not in the hobbyist range. 

You could try asking on the HP/Agilent Yahoo group, as there is a good chance someone on there will know about such an issue. 

Please note I don't work for Agilent. 

Dave

嗨大卫，谢谢你的意见。
我检查了零件网站，当我在11885A（003选项）上搜索时，我确实得到了这个选项的命中，但我没有看到任何硬件。
我找到的只是一些标签标签和一张软盘。
如果安捷伦的某个人能为我解决这个问题会很好吗？
谢谢



     以下为原文

  Hi David,
Thanks for the input. I did check the parts website and when I do a search on 11885A (003 option) I do get a hit for this option but I don't see any hardware. All I find are some label tags and a floppy disk. It would be nice if someone from Agilent could clear this up for me?
Thanks

源锁定取决于大致了解内部振荡器的频率，它们会随着时间的推移而漂移，或者可能是一个元件在温暖时老化，所以当你第一次打开它时就可以了，但是然后漂移超出范围。
有一系列的服务测试允许系统自我校准，但是自从我做了这个程序以来，已经有数年和数年（该单元可能已经20年了）。
我曾经把它们都记住了。
要运行服务测试，您必须移动一个eeprom保护跳线，以便存储结果。
主要是源锁相预测试和源相锁定校准。
预测试设置默认值，锁相校准使用这些值来确定最终值。
您也可以尝试关闭避免刺激。
如果断块避免关闭会导致锁相问题消失，那么可能是支线避免调整关闭。
由于刺激避免取决于很多事情，因此随着单元加热并导致锁相有问题，它可能会随机出现。
你必须google服务测试文件;
我不知道哪里有任何问题。



     以下为原文

  The source phase lock depends upon knowing roughly the frequency of the internal oscillators and they will drift with time, or possibly a component is aging when warm and so when you first turn it on it is OK but then drifts out of range.  

There are a series of service tests that allow the system to self calibrate but it has been years and years (that unit is likely 20 years old) since I did the procedure.  I used to have them all memorized.

To run the service tests you will have to move an eeprom protection jumper that will allow the results to be stored.

The main ones are the source phase lock pretest and the source phase lock calibration.

The pretest sets defaults values, that are used by the phase lock calibration to hone-in on the final values.

You might also try turning spur-avoidance off.  If the spur avoidance off makes phase lock problems go away, then it might be the spur avoidance adjustment is off.  Since spur avoidance depends on a lot of things, it can come on randomly as the unit heats and cause the phase lock to have trouble.

You'll have to google for service test documents; I don't know where any are right off the top of my head.

Dr_joel，非常感谢您的回复。
我很难找到如何解决刺激问题，但我发现在安捷伦网站的某个地方隐藏了一个小页面，其中提到了此设置。
命令是SM8 [ON |
OFF]我已经使用IO库套件中的交互式IO工具输入了它。
我无法在用户，服务或编程手册中找到此设置。
我今天会先进行这项测试。
我不知道要花多长时间。
它第一次发生时，分析仪已经开启了将近一天，即便如此，它只偶尔产生错误一秒左右，然后又回到锁定阶段。
我确实为相位锁运行了一个服务测试程序，但它无法检测到任何问题。
我也运行了置信度测试程序，但所有这些测试也没有遇到任何问题。
如果这个测试成功通过，我会把它留下来，如果没有，我将尝试运行阶段预测试和校准例程。
我打算将此装置送到安捷伦进行校准。
我想知道，在我自己进行任何修改之前，如果在校准过程中所有这些设置都得到了纠正吗？
如果他们这样做我只会发送它。你能告诉我如何存储刺激避免的设置吗？
谢谢...



     以下为原文

  Dr_joel,
Thanks very much for your reply. I've had a hard time finding out how to turn the spur-avoidance off but I found a little page hidden somewhere on the Agilent website where this setting was mentioned. The command is SM8[ON | OFF] and I've entered it using the interactive IO tool within the IO library suite. I was not able to find this setting in the user, service or programming manual. I'll first run this test today. I don't know how long it's going to take. The first time it happened the analyzer had been turned on for almost a day and even then it only generated the error sporadically only for a second or so and then going back to locking the phase again. I did run the a service test routine for the phase lock but it could not detect any problem. I've also run the confidence test routines but all these tests also passed without problems.

If this test passes successfully I'll just leave it for what it is, if it don't, I will try to run the phase pretests and cal routines. 

I am planning on sending this unit in to Agilent for calibration. And I would like to know, before I make any modifications myself, if all these settings are corrected during the calibration procedure? If they do I'll just send it in.

Could you also tell me how to store the setting for the spur-avoidance?

Thanks...

好的，我昨天在关闭了spur-avoidance选项的情况下进行了测试。
我早上8点左右打开了分析仪。
我不得不在13:30转身，然后在15:30转身。
在20:30我开始再次获得锁相失误，因此这排除了刺激避免选项。
我想尝试生成新的校正常数：测试＃45。
测试＃45产生YIG振荡器的校正常数，以确保正确的锁相。
我的问题是：我可以在没有＃44的情况下运行＃45吗？
或者我需要先运行＃44：生成基本的源功率精度常数。
根据手册，该测试必须在测试＃45之前运行。
谢谢...



     以下为原文

  Okay,
I have run the test yesterday with the spur-avoidance option turned off. I've turned on the analyzer about 8:00 in the morning. I had to turn it of at 13:30 and back on at 15:30. At 20:30 I started to get phase lock lost errors again so this rules out spur-avoidance off option.

I would like to try and generate new correction constants: test #45. Test #45 generates the correction constants for the YIG oscillators to ensure proper phase lock. My question is: can I run #45 without #44? Or do I need to run #44 first: generate rudimentary source power accuracy constants. According to the manual this test must be run before test #45.

Thanks...

> {quote：title = WuLi写道：} {quote}>我想尝试生成新的校正常数：test＃45。
测试＃45产生YIG振荡器的校正常数，以确保正确的锁相。
我的问题是：我可以在没有＃44的情况下运行＃45吗？
或者我需要先运行＃44：生成基本的源功率精度常数。
根据手册，该测试必须在测试＃45之前运行。
>>谢谢......我有一个类似于你的8752A，如果手册说在＃45之前执行测试＃44你最好这样做，因为有一个原因，惠普写道。
您是否需要特定类型的测试设备才能运行该测试？
我在我的身上发现，当我在中间进行校正常数测试时，我得到了相同类型的“相位锁定损失”错误，但是当我完成它们之后离开时。
您需要一个校准套件来完成校正常数，特别是HP 85032B（50欧姆单位）。
您的设备是否在固件中有系统验证菜单选项？
它应该，所以运行它以确保一切正常请注意你必须将跳线移到ALT（改变）位置，然后在完成修正后将其移回NRM（正常）位置，以便更改为永久性的，如果不是
当你关闭它时，你将失去所有新的更正。
此外，如果您不需要订购一根原装电缆，您需要使用原装电缆，这是8120-4781相稳定电缆，所有这些都可以运行sys，ver测试并享受您的VNA。
通过他们的方式我为我的电缆支付了超过100美元，现在在ebay上有一个39USD。
作为一个注释，我有一个基于Windows的PNA，我仍然更喜欢我的8752A，他们是非常坚固的单位我把它比作57雪佛兰贝尔空气。



     以下为原文

  > {quote:title=WuLi wrote:}{quote}

> I would like to try and generate new correction constants: test #45. Test #45 generates the correction constants for the YIG oscillators to ensure proper phase lock. My question is: can I run #45 without #44? Or do I need to run #44 first: generate rudimentary source power accuracy constants. According to the manual this test must be run before test #45.
> 
> Thanks...
I have an 8752A similar to yours and if the manual said to perform test #44 before #45 you better do it like that there is a reason why HP wrote that. Do you need a specific type of test gear to run that test?. I found on mine that while I was doing the correction constant tests in the middle I got the same type of ¨Phase Lock Loss¨ error but when away after I completed them. You will need a calibration kit to finish the correction constants specifically the HP 85032B (for 50 Ohms units). Does your unit has a system verification menu option in the firmware? it should, so run it to make sure all is ok
Be aware you have to remove the jumper to ALT (alter) position then after completing the corrections move it back to NRM (normal) position in order for the changes to be permanent if not when you turn it off you will lose all the new corrections. Also you will need to have the original cable that came with it if you dont you wil need to order one it is the 8120-4781 phase stable cable with all that you can run the sys, ver tests and enjoy your VNA. By they way I paid over 100USD for my cable and there is one for 39USD on ebay right now. As a note I have a Windows based PNA and I still like better my 8752A, they are very rugged units I compared it to a 57 Chevy Bell Air.

好的，我现在有了这个单元的所有文档。
CC对此错误消息进行校正的顺序是：将跳线转到alt，预置系统测试＃46，预置系统测试＃45＆amp;
预置系统测试＃48，然后将跳线转回标准位置。
我让这个单位昨天连续运行了15个小时，它运行顺利，没有任何问题。
我还使用模拟总线，频谱分析仪和示波器进行各种系统检查。
这个宝宝仍然是现货....感谢PS我仍然希望安捷伦有人告诉我如何获得这个单位的003选项？



     以下为原文

  Okay,
I have all the documentation of this unit now. 

The sequence for the CC's to make the correction for this error message is: turn the jumper to alt, preset system test #46, preset system test #45 & preset system test #48, then turn the jumper back to the norm position. I've let the unit run for 15 hours straight yesterday and it runs smooth without any problems what so ever. I did also run all kinds of system checks using the analog bus a spectrum analyzer and a scope. This baby is still spot on....
Thanks

PS
I would still like someone from Agilent to tell me how to go about obtaining the 003 option for this unit?

> {quote：title = WuLi写道：} {quote}>我还是希望安捷伦有人告诉我如何获得这个单元的003选项？
这是一个问题安捷伦不销售不支持设备的选项。
我会买一些选择，如果他们也会把它卖给我，但我被告知他们现在不会。
他们可以在没有支持的情况下以更低的成本出售期权。
我不知道他们没有这样做的原因。
问题是，过时或不支持的设备大多数时间以低于一种选择的价格出售会花费。



     以下为原文

  > {quote:title=WuLi wrote:}{quote}


> I would still like someone from Agilent to tell me how to go about obtaining the 003 option for this unit?
Thats a problem Agilent dont sell options for unsupported equipment. I would buy some options if they would sell them to me too, but I was told they wont for now. They could just sell the options at a lower cost without support. I dont know what reasons they have for not doing it. The thing is that obsolete or unsupported equipment most of the time sell for less than an option would cost.

我不需要支持......只是选项。
我了解业务方面和政策需求。
我正在家里学习电磁学，所以我无法使用大学的设备。
这就是我只能负担旧设备的原因。
我不知道在购买之前我必须检查这些选项的可用性......但我生活和学习。
我对我的分析仪仍然非常满意;-)



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  I don't need support... just the option. I understand the business aspects and the need for policies. I'm studying electromagnetics at home so I don't have access to equipment at a university. That's why I can only afford older equipment. I did not know that I had to check for the availability of these options before I've made the purchase... but I live and learn. I'm still very happy with my analyzer though ;-)

给我发私信，并附上您的序列号。



     以下为原文

  Send me a private message and include your serial number.