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我有一个带选件H08的HP 86290B。
该扫频振荡器插头的频率从2 GHz到22 GHz。 但是,使用我的DVM测量时,设备背面BNC连接器的频率参考值最高可达18.8伏。 我认为应该产生大约1伏/ GHz的输出,这样电压应该高达22.0伏? 然而,我检查了输出频率,它在刻度结束时确实达到了22 GHz。 以上来自于谷歌翻译 以下为原文 I have an HP 86290B with option H08. The frequency of this sweep oscillator plug goes from 2 GHz to 22 GHz. However, the frequency reference from the BNC connector on the back of the unit only goes up to a maximum of 18.8 volts when measured using my DVM. I thought it was supposed to produce an output of about 1 volt/GHz so that the voltage should go up to 22.0 volts? I checked the output frequency, however, and it does go to 22 GHz at the end of the scale. |
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我不再有文档,但我认为这是正常的。
插件的正电源仅为+ 20V,因此1V / GHz输出无法达到22V。后扫描器允许您选择1V / GHz或0.5V / GHz,但这种变化有 没有发生86290B插件。 这真的会引起问题吗? 它仅用于少数应用...... 以上来自于谷歌翻译 以下为原文 I don't have the documentation any longer, but I think this is normal. The positive supply to the plug-in is only +20Volts, so the 1V/GHz output can't quite manage to make it to 22V. Later sweepers allowed you to select either 1V/GHz or 0.5V/GHz, but that change had not happened for the 86290B plug-in. Is this really causing a problem? It was only used in a few applications... |
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jiangjia12 发表于 2019-4-11 14:25 这个插件是86290的一个特殊选项(H22),专门用于以前方式的8559A,8569A / B,8566A / B ... 22 GHZ SA的平坦度调整(现代时尚:使用合成扫地机进行峰值保持检测 )。 不使用1V / GHZ输出。 这项工作的主要仪器是8709A / B选件H10,开关+/-为21.4 Mhz IF(接受SA谐波混频器的上下转换)。 以上来自于谷歌翻译 以下为原文 This plug in was a special option (H22) of the 86290 dedicated to the flatness adjustment of the 8559A, 8569A/B, 8566A/B... 22 GHZ SA in the previous fashion ( modern fashion : peak hold detection with a synthesized sweeper). The 1V/GHZ output is not used. Main instrument in this job is the 8709A/B option H10 with the switch +/- of the 21.4 Mhz IF (to accept either upper or lower downconversion of the SA harmonic mixer). |
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