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我正在使用8757C标量网络分析仪和8350B扫地机。
尽管预设8757C，但它根本不显示任何频率信息。 它对提供的频率作出反应，但不会在任何标签或光标细节上说明频率。 有没有人在那里仍然使用这些机器可以帮助我并告诉我我可能做错了什么？ 提前干杯，布雷姆纳 以上来自于谷歌翻译 以下为原文 I am using a 8757C Scalar Network Analyzer alongside a 8350B sweeper. Despite presetting the 8757C, it is not displaying any frequency information at all. It is reacting to the supplied frequency, but will not state the frequencies at any labels or cursor details. Does anyone out there still use these machines who could help me out and tell me what I am likely to be doing wrong? Cheers in advance, Bremner 
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4个回答
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令人惊讶的是，我的办公桌上有一台8757D（不是C），配有一台8350B扫地机。
在8757上，您是否尝试过使用System {Frequency Labels}以确保它们已开启？ 出于安全原因，我们允许用户关闭频率标签。编辑：am95405于2013年8月1日上午11:29 以上来自于谷歌翻译 以下为原文 Amazingly, I have a working 8757D (not C) with an 8350B sweeper at my desk. On the 8757, have you tried going to System {Frequency Labels} to make sure they are on? We allow users to turn the frequency labels off for security reasons. Edited by: am95405 on Aug 1, 2013 11:29 AM |
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2019-2-19 15:28:48
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dsgdadsad 发表于 2019-2-19 15:28 系统 - > [频率标签]仅显示关闭，它不提供关闭任何选项的选项。 手册说击中[Preset]应该恢复频率信息，但它没有。 以上来自于谷歌翻译 以下为原文 System --> [Frequency Labels] only shows OFF, it doesn't give the option to turn anything off. The manual says that hitting [Preset] should restore the frequency information, but it doesnt. |
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> {quote：title = Bremner写道：} {quote}>系统 - > [频率标签]仅显示OFF，它不提供关闭任何内容的选项。 手册说击中[Preset]应该恢复频率信息，但它没有。 我不知道你的VNA，但这里有一些我认为会导致我的8720D不显示频率信息的事情。 *一旦频率信息被删除，正如Afsi所说出于安全原因，它需要*电源周期*，PRESET *不够*。 *可以保存用户定义的预设。 如果我没记错的话，可以将文件作为UPRESET保存到内部存储器中。 如果用户预设被定义为不显示频率，则除非首先移除该用户预设，否则电源循环可能永远不会显示频率。 因此，虽然我从未尝试过，但我认为有可能设置我的8720D，因此即使在电源循环后它也不会显示频率。 反转它的方法是删除用户预设，然后重启仪器。 我建议您检查是否已定义用户预设。 正如我所说，在我的8720D上，我认为它被命名为UPRESET，但另一个VNA可能有不同的方式。 当我在VNA上按下PRESET时，我确实可以选择将默认的USER PRESET更改为FACTORY PRESET，但默认为用户。 这可能会在你的VNA上解决它，但它本身不会，因为手册说需要一个电源循环。 我怀疑如果其他所有方法都失败，有一些方法可以将您的仪器重置为出厂默认值。 戴夫 以上来自于谷歌翻译 以下为原文 > {quote:title=Bremner wrote:}{quote} > System --> [Frequency Labels] only shows OFF, it doesn't give the option to turn anything off. The manual says that hitting [Preset] should restore the frequency information, but it doesnt. I don't know your VNA, but here are a couple of things I could think would cause my 8720D not to show frequency information. * Once frequency information is removed, which as Afsi says is for security reasons, it needs a *power cycle*, a PRESET is *not* enough. * It is possible to save a user defined preset. If I recall correctly one saves a file as UPRESET into the internal memory. If a user preset was defined to not show the frequency, it is possible that power cycling would never display the frequency unless one first removed that user preset. So whilst I have never tried it, I think it would be possible for me to set up my 8720D so it never shows a frequency, even after a power cycle. The way to reverse it would be to remove the user preset, then power cycle the instrument. I suggest you check if a user preset has been defined. As I say, on my 8720D I think that is named UPRESET, but another VNA could have a different way. When I push PRESET on my VNA, I do get the option to change the default USER PRESET to a FACTORY PRESET, though it defaults to user. That might solve it on your VNA, but it would not on mine, as the manual says a power cycle is needed. I suspect there is some way to reset your instrument to factory defaults if all else fails. Dave |
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我假设系统接口已连接并正常工作。
当您预设8757时，它应立即预设8350.如果没有发生，则系统界面不起作用。 以上来自于谷歌翻译 以下为原文 I am assuming the System Interface is connected and working. When you preset the 8757, it should then immediately preset the 8350. If that is not happening then the System Interface is not functioning. |
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