Ok, it SEEMS that the setting it doesn't like is "Measure". ATM if "Measure" is on, Demod is off.
Are there any other settings that will disable Demod?
Possibly, don't know.
That worked!
So is that a bug in the software or something?
Maybe the only bug is not informing the User to turn unnecessary features to OFF when using Demod.
I shouldn't have to factory reset every time I want to use Demod!
Depends on what features you might have selected and running in the background are incompatible with Demod.
There's good reason to have Preset in this instrument, just as there is good reason to have Default in a DSO.
Once more familiar you should find yourself using it often, especially at the start of another project.
I like Boot set to Last and Preset to Factory that seems make the most sense each time I use it which is not everyday.
As soon as I change a setting, it greys out again. What settings cause it to grey out? What settings do I need to change to allow Demod?
As you now may have realised Demodulation seems to have a heavy dependance on available system processing power where engaging Measurements seems to impact on Demod.
In other use types warnings are added to the display such as after Normalizing a trace then making an adjustment a UnCal warning is flashed up.
I'll ask Tech support about all this.