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4801-8-127 Image

The 4801-8-127 from Spectrum Control is a Solid-State Programmable Attenuator that operates from 0.3 to 8000 MHz. It is a cost-effective attenuator designed for customers who work with RF systems in challenging environments that require high performance. This attenuator consists of 8 channels and allows users to either independently control the attenuation in each channel or in a synchronized fashion, while maintaining excellent repeatability. It has an attenuation range of up to 127 dB in 0.25 dB step size. This solid-state attenuator has an insertion loss of less than 14.5 dB and a switching speed of 0.2 µs. 


The 4801-8-127 can be remotely controlled via Spectrum Control’s control software over a standard USB 2.0 communication protocol or an Ethernet interface that supports protocols such as IP, UDP, TCP, TELNET and HTTP (via a web browser). This RoHS-compliant attenuator requires a DC supply of +5 V via USB and consumes 200 mA of current. It is available as a module that measures 243.84 x 83.22 x 17.55 mm and has SMA (female) connectors. This programmable attenuator is ideal for automated test equipment (ATE), 3G/4G LTE/5G/DVB fading test simulation, MU-MIMO/WiMAX/Wi-Fi testing, and mobile handover simulation test environments.

Product Specifications

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Product Details

  • Part Number
    4801-8-127
  • Manufacturer
    Weinschel by Spectrum Control
  • Description
    127 dB, 8-Channel Programmable Attenuator from 0.3 to 8000 MHz

General Parameters

  • Type
    USB Controlled, Programmable
  • Applications
    Test & Measurement, Automated Test Equipment (ATE)
  • Frequency
    0.3 to 8000 MHz
  • Channels
    8 Channels View all
  • Configuration
    Solid State View all
  • Attenuation Range
    0 to 127 dB
  • Attenuation Step
    0.25 dB
  • Power
    0.016 to 1.58 W
  • IIP3
    60 dBm
  • Insertion Loss
    6.5 to 14.5 dB
  • Switching Time
    0.2 us
  • Supply Voltage
    4.75 to 5.25 V
  • Interface
    USB, Ethernet
  • Current
    100 to 200 mA
  • Impedance
    50 Ohms View all
  • VSWR
    1.80:1, 2.10:1
  • Input VSWR
    1.80:1, 2.10:1
  • Output VSWR
    1.80:1, 2.10:1
  • Package Type
    Module with Connectors View all
  • Connector
    SMA, SMA - Female
  • Connector 1
    SMA - Female
  • Connector 2
    SMA - Female
  • Control Interface
    TTL
  • Operating Temperature
    -20 to 85 Degree C
  • Storage Temperature
    -55 to 125 Degree C
  • RoHS
    Yes

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