Vaunix LDA-203

Lab Brick 1 - 20 GHz Digital Attenuator
Contact us for pricing and availability.

Lab Brick LDA-203 Digital Attenuators is a bidirectional 50 Ohm RF step attenuators operating from 1 to 20 GHz. A simple connection to a USB host provides DC power and control. No additional DC supply voltage is required. Lab Brick Digital Attenuators are easily programmable for fixed attenuation, swept attenuation ramps or run custom attenuation profiles directly from the included GUI. Lab Brick Digital Attenuator Windows®/Linux API dll's and LabVIEW compatible drivers are also available for custom programming applications.


  • Input power to +23 dBm
  • USB powered and controlled
  • Includes easy to install and use GUI
  • Includes Windows SDK, Linux SDK, LabVIEW drivers
  • Programmable attenuation ramp and fading profiles
  • Operate multiple devices directly from a PC or self powered USB hub
  • Easily programmable for ATE applications


  • Automated Test Equipment (ATE)
  • WiMAX, 3G, 4G, LTE, DVB, PTP Microwave Fading Simulators
  • Engineering/Production Test Labs

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