As I understand, you are trying to model linear distortion at the transmitter. This can be achieved by configuring and connecting individual components of a "Transmitter," such as "Amplifier," "Mixer," and "Filter," using linear parameters. Please refer to the documentation for the "Amplifier" under "Circuit Envelope" at the following link:
The documentation mentions that linear amplification is modelled as follows:
Vout = a1*Vin
For more details on modelling with other elements, kindly refer to this link below:
Hope this helps!
