8 channel USB programmable attenuator | SMA female

8 Channel USB Attenuator | 200-6000 MHz | 0-95dB x 1dB

/in , /by

JFW model 50P-2140 SMA is an 8 channel USB programmable attenuator.  It operates from 200-6000Mhz with attenuation range 0 to 95dB by 1dB steps.  All eight 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-2140 Documents:

Test software Provided:

  • 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 attenuator using Python instead of our standard Windows based test program, JFW does offer a Python library (jfwusb.py).

  • Auto-discovery of any JFW USB devices connected to the computer.
  • Set persistent device names for each attenuator.
  • Set/read attenuator by its device number.
  • Set/read attenuator by its serial number.
  • Set/read attenuator by its user defined name.
  • Set all attenuators to the same dB value, min dB value, or max dB value.