PNA-X如何将LO设置为不受控制？

您好，我有一个测试设置，能够测试有和没有嵌入式LO的下变频器DUT。
对于IMDX测量通道，我想将嵌入式LO情况下从指定外部源的LO更改为“未控制”。
我查看了pnahelp9_50 .chm帮助文件，找到了“SENSe：MIXer：LO：NAME”的命令。
它声明默认值为“Not Controlled”。
但是，如果我尝试发出此命令：SENS：MIX：NAME“Not Controlled”我收到'错误1147未找到指定的外部设备。'
我看了下面的其余部分：SENSE：MIXER：LO命令树，找不到任何可比较的命令。
有没有办法使用scpi编程将LO设置为'Not Controlled'值？
谢谢，rok



     以下为原文

  Hello,

I have a test setup that has the ability to test either downconverter DUTs with and without embedded LOs. For the IMDX measurement channels, I want to change the LO from a specified external source to 'Not Controlled' for the embedded LO case. I looked at the pnahelp9_50 .chm help file and found the command of  "SENSe:MIXer:LO:NAME ". It states that the default value is "Not Controlled". But if I try to issue this command:

SENS:MIX:NAME "Not Controlled"

I get an 'Error 1147 Specified external device was not found.'

I looked at the rest of the :SENSE:MIXER:LO tree of commands and couldn't find any comparable command. Is there some way to set the LO to 'Not Controlled' value using scpi programming?

Thanks,
rok