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使用较旧的E8362B（500Mhz CPU 06.04.32固件）;
如何在进行VMC测量时执行源功率校准？ 源功率校准选项是灰色的，尽管看起来如果有一个完成，可以打开和关闭源功率校正。 它甚至可能吗？ 我知道源功率校准是SMC测量校准的关键部分。 为什么它似乎不是VMC的选项？ 我检查了PNA-X，看起来你可以在运行VMC时做一个源功率校准，但显然这是一个较新的固件版本（我相信9.33）。 如果不能在E8362B上完成; 它引入了哪种型号和固件？ 感谢任何人的帮助，任何人都可以提供Stephen Estrin原理测试工程师Cobham Defense Electronic Systems 以上来自于谷歌翻译 以下为原文 Using an older E8362B (500Mhz CPU 06.04.32 firmware); how can I perform a source power cal when doing a VMC measurement? The source power cal option is greyed out although it looks like one could turn a source power cal correction on and off if there was one done. Is it even possible? I know that a source power cal is a critical part of an SMC measurment calibration. Why does it appear to not be an option for VMC? I checked on a PNA-X and it appears you can do a source power cal when running VMC, but obviously that is a newer firmware version (9.33 I believe). If it can't be done on the E8362B; with which model and firmware was it introduced? Thanks for any assistance anyone can provide Stephen Estrin Principle Test Engineer Cobham Defense Electronic Systems 
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4个回答
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这有点延长旧存储器库，但如果我没记错的话，在VMC中您可以选择在VMC校准期间校准LO源，我认为您可以使用源功率校准在输入端口上执行源校准
对话框（不通过校准向导）。 目前我无法使用旧的PNA进行试用，但我明天可以找一个确认。 当您使用VMC（VC21）测量转换损耗时，您正在进行真正的比率测量，其中B接收器与R1接收器同时测量并且频率相同（这就是您使用参考混频器的原因） 源循环）。 由于VC21是真比率，因此B和R1测量的绝对幅度不如在SMC中进行相同测量时那么重要。 此外，在SMC中，您还可以选择测量实际的输入和输出功率，这就是为什么功率校准在SMC中很重要而在VMC中不那么重要的原因。 以上来自于谷歌翻译 以下为原文 This is stretching the old memory banks a bit, but if I remember correctly, in VMC you were given the option to calibrate the LO source during the VMC calibration and I thought you could perform a source cal on the input port using the source power cal dialog (not through the cal wizard). At the moment I don't have access to an old PNA to try it out, but I can look for one tomorrow and confirm. when you are measuring the conversion loss with VMC (VC21), you are making a true ratio measurement, where the B receiver is measured exactly at the same time as the R1 receiver and at the same frequencies (that's why you have a reference mixer in the source loop). Because VC21 is a true ratio, the absolute amplitude of the B and the R1 measurements are not as important as they are when you are making the same measurement in SMC. Plus in SMC you also have the option of measuring the actual input and output powers and that's why power calibration is important in SMC and not so important in VMC. |
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抱歉延迟，但这些旧箱子很难得到。
因此，事实证明，在A.06.04.32中，您无法选择在VMC中执行任何功率校准，但在A.07.50.xx中，您可以使用源功率校准对话框。 现在在我们的支持网站上，它说这个版本只支持1.1 GHz cpu的盒子，但实际上它可以与500 MHz CPU一起使用，如果你有512 MB或更多的内存。 因此，检查您的内存，如果您有足够的内存，您可以从_ * HERE * _下载最新支持的A.07.50.xx代码。 如果你没有足够的记忆，我可以让你联系我们的支持工程师，他们有一些额外的记忆在他的抽屉里烧了一个洞我们可以把你搞定:-) 以上来自于谷歌翻译 以下为原文 sorry for the delay, but these old boxes are hard to come by. So as it turns out with A.06.04.32, you don't have an option to do any power cal in VMC, but in A.07.50.xx you can use the source power cal dialog. Now in our support web site, it says this version is only supported on the boxes with the 1.1 GHz cpu, but in reality it can be used with the 500 MHz CPU if you have 512 MB of memory or more. So, check your memory and if you have enough, you can download the latest supported A.07.50.xx code from _*HERE*_. if you don't have enough memory, I can put you in touch with one our support engineers who has some extra memory burning a hole in his drawer and we can hook you up :-) |
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感谢您的信息。
我们尝试了它并且它可以工作，但是对于相同的测量设置，技术人员抱怨扫描太慢而06.04.32。 我认为这是500MHz CPU上固件开销的一个功能，如果他想要校准源功率，他将不得不处理它。 不能取悦一些人;） 以上来自于谷歌翻译 以下为原文 Thanks for the information. We tried it and it works, but the tech complains the sweeps are too slow vs. 06.04.32 for the same measurement setups. I assume that this a function of the firmware overhead on the 500MHz CPU, and he would have to deal with it if he wanted the source power calibrated. Can't please some people ;) |
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好副本不敌 发表于 2018-10-23 18:17 > {quote：title = SteveE。 写道：} {quote}> ...但是对于相同的测量设置，技术人员抱怨扫描太慢而06.04.32。 我认为这是500MHz CPU上固件开销的一个功能，如果他想要校准源功率，他将不得不处理它。 不能取悦一些人;）它可能是。 我们没有对特定的硬件/软件组合进行太多测试，因为它没有得到官方支持。 源功率cal本身不应该减慢扫描速度，因为它只是一个应用于源的偏移数组。 以上来自于谷歌翻译 以下为原文 > {quote:title=SteveE. wrote:}{quote} > ... but the tech complains the sweeps are too slow vs. 06.04.32 for the same measurement setups. I assume that this a function of the firmware overhead on the 500MHz CPU, and he would have to deal with it if he wanted the source power calibrated. Can't please some people ;) it could be. we didn't do much testing of that particular HW/SW combination, because it isn't officially supported. the source power cal itself, should not slow the sweep down because it is just an offset array being applied to the source. |
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