JFW has a 50 Ohm 4 channel USB attenuator to help automate your RF testing.  JFW model 50P-2089 SMA operates from 200-6000MHz with attenuation range 0 to 95dB by 1dB steps.  All four attenuators are individually controlled.  Test software is provided with the USB attenuator.  If you would like to integrate the USB attenuator into your script testing, we do offer a JFW Python library upon request.

50P-2089 Documents:
USB Test software Features:
  • Test software manual available for download.
  • Auto-discovery of any JFW USB attenuators connected to the computer.
  • Control attenuator(s) using a slider bar, increment buttons, or manually entering the attenuation value.
  • Set persistent device names for better organization of complex test scenarios.
  • Create test scripts that can control many attenuators.
  • Fade and Handover commands can be executed in Sequential or Synchronous mode.
Saving and Loading of scripts in JSON format.
  • Requires Microsoft Windows Vista or greater.
  • Requires Dot Net Framework 4.0 or greater.
Python Library Available
If you would prefer to control the USB attenuators using Python instead of our standard Windows based test program, JFW does offer a Python library (jfwusb.py).  Email our engineering department for the Python library and examples.