To use the Signal Studio software in a multi-channel configuration with M9381A PXIe VSGs, the following must be true to ensure the system works properly.
Multi-channel capability (4x4 or greater) with the M9381A PXIe VSG requires Option MEU. Refer to Licenses for more information.
The Signal Studio software assumes the VSG follows the multi-channel reference solution typical configuration, using the accompanying configuration tools. Refer to the LTE/LTE-Advanced Multi-Channel, Reference Solution Startup Guide for more information. Also refer to the “Multi-Channel Reference Solution Typical Configuration” section of the M9381A PXIe Vector Signal Generator Configuration Guide.
Multiple VSGs should be configured using the Multi-Channel PXIe Config Utility. This program configures the backplane triggering, alignments, self-test and 89600 VSA software-hardware configuration.
The VSGs are assumed to be used in a multi-channel system, not as individual standalone VSGs.
For example, if you configure four VSGs using the Multi-Channel PXIe Config Utility, it is assumed that all four VSGs are used together all the time. There should never be a case where any one of the four VSGs is used individually.