The command changes the instrument mode for the indicated channel. The query returns the current instrument mode for the indicated channel where the instrument mode types are:
• TRANrefl = Transmission/Reflection
• NFIGure = Noise Figure
Changing from Transmission/Reflection Mode to Noise Figure Mode
When the VNA application mode is changed from the default Transmission/Reflection mode to Noise Figure mode, the instrument configuration changes to the default Noise Figure trace configuration with:
• A single trace
• Noise Figure response in a LogMag display type
Changing from Noise Figure Mode to Transmission/Reflection Mode
When the VNA application mode is changed from Noise Figure mode to Transmission/Reflection mode, the instrument resets to factory as-shipped default configuration setting of four traces set as:
• S11 response in a Smith Chart display type
• S12 response in a LogMag + Phase display type
• S21 response in a LogMag + Phase display type
• S22 response in a Smith Chart display type
Returning to Another User-Defined Preset Configuration
If, after exiting exiting Noise Figure mode for Transmission/Reflection mode, a different instrument configuration is required programmatically, use the :SYStem:PRESet command subsystem to apply a previously user-defined configuration. The commands are described in the :SYStem subsystem described below. The available commands are: