Karim ElSabry

Frequency Measruement

Hi Marcel, Dietmar, my provided testbench was an example on what I have encountered. From educational videos about Qucs-S, I have learnt to add a variable on any element (let's say a resistor with R = RL), and then declare the value of this variable in the equation hub. However, it looks like that this was working in older versions of Qucs-s but I am not sure, so I thought that there could be a problem in my setup.

Hi Marcel, I have tried the following: RL= 10kOhm, RL=10k but both didn't work. I have to say that the created netlist is from Qucs itself and I haven't written it myself. So for the commands you have mentioned, I don't know why they will created in the first place. Please have a look at the schematic and let me know if you see anything wrong there.

Log file is added as well.

Hi Marcel, in the netlist, {} are added already. I have appended a netlist example for RL variable.

I am using Windows 11 as well.

Undefined Parameter Cannot compute substitute