N9020A MXA射频对准失败

你好。
我有一台Agilent N9020A MXA，它产生了“* RF对准失败*”错误，状态显示“*立即对齐，全部需要*”。
偶尔它会显示LO解锁错误。
*是否列出了对齐所包含的步骤，因为它进展到22 *的步骤X（取决于所选的对齐类型（全部，除了RF或RF之外）？我只是对此过程感到好奇。
测量结果看起来仍然正常，幅度，频率，带宽，3.6 GHz的频率响应和噪声水平。我唯一看到的不太好的是噪声边带，它在_10 kHz和100 kHz偏移下失效.1 MHz和100
Hz偏移通过 - 但几乎没有。这个单元用于ATE，因此错误消息停止测试。该单元需要进行修复，我只是想更好地理解问题。似乎
也许（？）LO噪音或电源问题.SteveEdited：S。Reeves于2013年12月20日12:09 PM



     以下为原文

  Hi.

I have an Agilent N9020A MXA that has developed an error of "*RF Alignment Failure*", and the status shows "*Align Now, All required*". Occasionally it will show LO Unlock errors.

*Is there a list of what the steps are that alignment consists, as it progresses through step X of 22* (depending on the type of alignment selected (All, All but RF or RF) ?  I'm just curious about this process. Measurements still look normal, amplitude, frequency, bandwidths, frequency response to 3.6 GHz and noise levels.

The only thing I see not so good, are the noise sidebands, which fail at the _10 kHz and 100 kHz offsets_. The 1 MHz and 100 Hz offsets pass - but just barely. This unit is used in an ATE, so the error messages halt the testing. The unit will need to go in for repair, I'm just trying to get a better understanding of the problem. It seems maybe(?) an issue with LO noise or power supplies.


Steve

Edited by: S. Reeves on Dec 20, 2013 12:09 PM