I need to get the Total Harmonic Distortion remotely. However, the oscilloscope is not accepting any commands related to the THD. Most of the commands sent are followed by the following message on the oscilloscope screen: "The selection is not available in this instrument."
The error messages, the oscilloscope, the firmware version used and some of the attempted commands can be seen in the picture. The THD shown in the measurements menu was manually set by me.
Does anyone know what I am doing wrong? Am I using an incorrect syntax?