Variable Crosstalk Coupler

VXC4000 Series

Applied with Artek’s unique technologies for analog signals as well as advanced electromagnetics, the VXC4000 series are designed as a Variable Crosstalk Coupler for high speed serial interface stress tests. It linearly controls the amount of crosstalk from the aggressor by 1,000 steps in its dynamic range. The differential transmission lines for both aggressor and victim are totally passive and DC coupled. The adjusted crosstalk amount is reliably repeatable and stable for secure test results. The control is done by PC remote via USB. The VXC4000 series are useful crosstalk coupler, applicable for various standard stress tests and compliance tests.


  • Linearly Variable (1,000 steps)

  • Passive & DC Coupled

  • Repeatable & Stable

  • Remote Controllable

Setup Example

Crosstalk Dynamic Range

Insertion Loss - Sdd21 (Victim line)

Return Loss - Sdd11 (Victim Line)

Remote Control

  • Interface: USB 2.0

  • OS: Windows 7 / 8 / 10

  • Included: Device driver, GUI Software

  • Commands: IEEE Std488 / SCPI compatible

  • Remarks: Installs as a COM port, compatible with generic serial terminals


  • Transmission Line: 4X Single-end DC coupled
    Aggressor D+, Aggressor D-, Victim D+, Victim D-

  • Connector: VXC4000-K: 2.92mm Female / VXC4000-V: 1.85mm Female

  • Line Impedance: 50 Ohm

  • Input Tolerance: 10Vpp max

  • Insertion Loss: 2.5dB or less at 8GHz

  • Propagation Delay: 2.15ns +/- 50ps

  • Intra-pair Skew: +/- 5ps

  • Cross TalkAmount: 15dB ~ 60dB (typical average)

  • Tolerance: +/- 1dB (0-90%), +/- 1.5dB (90-100%)

  • Power: AC 85 - 240Vrms 50/60Hz 70VA

  • Dimensions: 453W X 456D X 170H (mm)

  • Weight: 20kg

  • Operation Env.: 15 to 25 deg-C, 65%RH or less

Ordering Information

Model Description

  • VXC4000-K-T1 Variable Crosstalk Coupler, K-connector

  • VXC4000-V-T1 Variable Crosstalk Coupler, V-connector

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