SKU: 75998077446

4 Channel 128 dB Programmable Attenuator (USB-C), 0.25 dB Step, 9K-8GHz

$2477.70 $2753.00
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Description

4 Channel 128 dB Programmable Attenuator (USB-C), 0.25 dB Step, 9K-8GHzPart Number: A4Q9K8G128 is a general purpose, four channel programmable attenuator suitable for wide range of signal level control applications from 9K to 8 GHz. The Attenuator provides 0 to 127 dB attenuation in 0. 25 dB steps. The Attenuator is housed in an ultra compact and rugged enclosure with four SMA Female connectors. The attenuator can be controlled via USB. Full software supported with our user friendly GUI application for Windows and Linux.

Part Number: A4Q9K8G128 is a general purpose, four channel programmable attenuator suitable for wide range of signal level control applications from 9K to 8 GHz.  The Attenuator provides 0 to 127 dB attenuation in 0.25 dB steps.

The Attenuator is housed in an ultra-compact and rugged enclosure with four SMA Female connectors.  The attenuator can be controlled via USB. Full software supported with our user-friendly GUI application for Windows and Linux.

It uses USB Type C connector for power and control.

Proudly Made in USA by Lotus Communication Systems, INC. in Massachusetts (www.lotussys.com).

Features

  • Four Channels
  • Frequency Range: 9K to 8G Hz
  • Wide Attenuation Range: 127 dB
  • Fine Attenuation Resolution: 0.25 dB
  • Short Attenuation Transition Time (500 ns)
  • Stainless Steel SMA Female Connector
  • High Quality Rogers RO4350 RF PCB
  • Electroless Nickel Plating and Permanent Laser Marking
  • USB Control
  • ROHS Compliant

Applications

  • Test Instrumentation
  • Automated Test Equipment
  • General Purpose Wireless
  • VSAT
  • SDR & Ham Radio

Resources (Datasheet)

A4Q9K8G128 Datasheet


Operational Manual

Digital Step Attenuator User Manual


    Windows/Linux GUI Control SW

    Self-Executable GUI SW Download

       

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      Exchange/Return Notes
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      SKU: 75998077446

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      Djohnson
      West Palm Beach, US
      ★★★★★ 4
      Good information
      Format: Hardcover
      I like all of his books
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      Reviewed in the United States on May 25, 2023
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      Kindle Customer
      Lowell, US
      ★★★★★ 5
      A Book for our Times
      Format: Kindle
      This book has excellent advice for all Christians, as well as those not sure of what the Bible says. The passages, illustrations, scriptures are presented logically, Biblically, and hold much wisdom. I enjoyed the encouragement, practical steps that all can use.
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      Reviewed in the United States on April 15, 2024
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      Kathryn L Taylor
      San Leandro, US
      ★★★★★ 5
      The World of the End book
      Format: Paperback
      It's very good book written by Dr. David Jeremiah
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      Reviewed in the United States on November 7, 2025
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      Sherri T. Mercer
      Bozeman, US
      ★★★★★ 5
      Diverse Worship--Make A Joyful Noise Unto The Lord All Ye Lands
      Format: Hardcover
      I love this beautifully illustrated story. Children and adults, too, learn God's vision for His church—true worship. Author Dorena Williamson presents an image of a church no longer divided by race, culture, or style of worship. Instead, the church is a gathering of God's people celebrating who He is and all He has done. Also included are author notes suggesting ways to share the importance of embracing and celebrating God's diverse world with children.
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      Reviewed in the United States on November 10, 2021
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      Michele Morin
      Lexington, US
      ★★★★★ 5
      We Are Better Together
      Format: Hardcover
      One Sunday morning when all the Sunday school classes landed in a heap for a multi-generational assembly followed by muffins, I read aloud from The Celebration Place, Dorena Williamson’s anthem to the Body of Christ gathered. How refreshing to share the truth that worship (and worshipers!) will look and participate differently in other places! Here in rural Maine where a choir is as rare a sight as a brown face, Erin Bennett Banks’s vivid illustrations enriched the text, and I was pleased to hear adult chuckles accompanying the page about rappers “nodding to the beat” while “old folks stomp their feet.” Together, author and illustrator announce the church as “no longer a divided space. Now it’s a celebration place!” With so many fractures in our world upon which we can distance and divide, the pursuit of unity in the Body of Christ is difficult but crucial. The work toward delightful diversity done today in God’s House is affirmation of the truth that we are better together, and it is preparation for the day when we will join with all nations God has made to glorify his name, for he is great and worthy of our celebration. Many thanks to IVP Kids for providing a copy of this book to facilitate my review, which is, of course, offered freely and with honesty.
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      Reviewed in the United States on December 6, 2021

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