Step attenuator
Waveguide step attenuator is used to control the input available in the DUT reference plane.
When clicking on the “Step Atten. 1" picture, the following menu appears on the right side of the schematic editor:

Instrument
- Driver: select the appropriate driver corresponding to the instrument (refer to Supported Step Attenuators list)
- Address: set the communication address. Note the
icon can be use to open the Instrument Scanner
- Options: set the specific driver options clicking on
icon (refer to Supported Instruments section)
- VISA Library: set the VISA Library (*.dll) used to communicate with the instrument (see help on this page: Getting Started : "Configure the VISA Library on the control PC")
- Command Time Out (ms): elapsed time before returning an error message if no response from instrument
- Command Delay (ms): delay before sending a command
General
- Minimum step: define the minimum attenuation step achievable by the step attenuator
- Maximum attenuation: define the maximum attenuation of the step attenuator